CN108617009A - a kind of data transmission method, device, system and packet data network gateway - Google Patents
a kind of data transmission method, device, system and packet data network gateway Download PDFInfo
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- CN108617009A CN108617009A CN201611145600.2A CN201611145600A CN108617009A CN 108617009 A CN108617009 A CN 108617009A CN 201611145600 A CN201611145600 A CN 201611145600A CN 108617009 A CN108617009 A CN 108617009A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/12—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
Abstract
The invention discloses a kind of data transmission method, device, system and packet data network gateways, due to the non-IPization data of uplink that this method is sent by receiving terminal UE by GTP tunnel, and it are removed from GTP tunnel；According to the mark for the GTP tunnel for receiving the non-IPization data of uplink, and the mapping relations of the mark of each GTP tunnel for pre-establishing and the IP address for each UE distribution, determine to send the IP address that the UE of the non-IPization data of uplink is distributed；According to determining to be the IP address for the UE distribution for sending the non-IPization data of uplink and the non-IPization data of uplink separated, the uplink IP packet of the non-IPization data of uplink is generated；The uplink IP packet of the non-IPization data of the uplink of generation is sent to data by IP network and stores retransmission center.It is thereby achieved that the transmission of non-IPization data in an ip network, while having taken into account the compatibility transmitted with IP.
Description
Technical field
The present invention relates to field of communication technology more particularly to a kind of data transmission method, device, system and Packet Data Networks
Gateway.
Background technology
Narrowband honeycomb Internet of Things (Narrow Band Internet of Things, NB-IoT) is Internet of Things
The emerging technology in one, the field (Internet of Things, IoT) supports low power consuming devices to connect in the cellular data of wide area network
It connects, also referred to as low-power consumption wide area network (Low Power Wide Area, LPWA).NB-IoT supports stand-by time long, generally
The battery life of NB-IoT equipment can be improved at least 10 years.NB-IoT can also provide very comprehensive indoor cellular number simultaneously
It is covered according to connection.In addition, NB-IoT is implemented in cellular network, the bandwidth of about 180KHz is only consumed, the whole world can be deployed directly into
Mobile communication system (Global System for Mobile Communication, GSM) network, Universal Mobile Communication System
(Universal Mobile Telecommunications System, UMTS) network or long term evolution (Long Term
Evolution, LTE) network, to reduce lower deployment cost, realize smooth upgrade.
Currently, the mainstream scheme of end-to-end communication process in terminal to the cloud platform of NB-IoT still continues to use the side of IPization
Case utilizes the signaling plane of core net to carry Internet protocol (Internet Protocol, IP) data packet in the signaling
It is transmitted, difference is transmitted without with traditional internet information.Specifically, as shown in Figure 1, the data that send out of terminal UE are narrow
Retransmission center (Data Exchanging Centre, D- are stored with the data for being transmitted to data platform 101 under honeycomb Internet of Things
MEC), path is by base station 102 (Evolved Node B, eNode-B), the gateway (Serving of core net 103
GateWay, S-GW) and packet data network gateway (Packet Data Network GetWay, P-GW).
For NB-IoT, 3G (Third Generation) Moblie (The 3rd Generation Mobile Communications,
3GPP) a kind of transmission mode of non-IPization is given after traditional IPization transmission.Due in the transmission mode of non-IPization
Data do not carried by the way of IPization, therefore, traditional IP transmission links are invalid to such mode.However, 3GPP
In therefore how substantive scheme solves the biography of non-IPization data in NB-IoT is not provided for the transmission of non-IPization
It is defeated, while the technical issues of take into account the compatibility transmitted with IP, be current urgent need to resolve.
Invention content
A kind of data transmission method of offer of the embodiment of the present invention, device, system and packet data network gateway, it is existing to solve
There is the transmission for how solving non-IPization data in NB-IoT present in technology, while taking into account asking for the compatibility transmitted with IP
Topic.
An embodiment of the present invention provides the data transmission methods in a kind of narrowband honeycomb Internet of Things, including：
The non-IPization data of uplink that are sent by GTP tunnel of terminal UE are received, by the non-IPization data of the uplink from described
It is removed in GTP tunnel；
According to the mark ID for the GTP tunnel for receiving the non-IPization data of uplink, and each GTP tunnel for pre-establishing
The mapping relations of ID and the IP address for each UE distribution, with determining the IP of the UE distribution to send the non-IPization data of uplink
Location；
According to determine be send the non-IPization data of uplink UE distribution IP address and separate it is described on
The non-IPization data of row, generate the uplink IP packet of the non-IPization data of the uplink；
The uplink IP packet of the non-IPization data of the uplink of generation is sent in data storage forwarding by IP network
Heart D-MEC.
In one possible implementation, in above-mentioned data transmission method provided in an embodiment of the present invention, described
According to determining to be the IP address for the UE distribution for sending the non-IPization data of uplink and the non-IPization number of the uplink that separates
According to generating the uplink IP packet of the non-IPization data of the uplink, specifically include：
The IP address that the UE to send the non-IPization data of uplink is distributed will be the D- as source IP address
The preconfigured IP address of MEC IP address as a purpose generates uplink IP packet header；
The non-IPization data of the uplink separated and the uplink IP packet header of generation are combined, the uplink is generated
The uplink IP packet of non-IPization data.
In one possible implementation, in above-mentioned data transmission method provided in an embodiment of the present invention, further include：
Using network access point APN as granularity, it is pre-configured with the IP address of the D-MEC.
In one possible implementation, in above-mentioned data transmission method provided in an embodiment of the present invention, further include：
When determining that the UE initiates to adhere to and connect with the foundation of the public data network PDN of core net, distributed for the UE
IP address；
According to the corresponding GTP tunnels of the UE, the ID and the IP for UE distribution of the corresponding GTP tunnels of the UE are established
The mapping relations of address.
In one possible implementation, in above-mentioned data transmission method provided in an embodiment of the present invention, further include：
The downstream IP message that the D-MEC is sent by IP network is received, by purpose IP address and downlink data from described
It is removed in downstream IP message；
Determine whether the purpose IP address that the downstream IP message carries is the IP address distributed for UE；
When the purpose IP address for determining that the downstream IP message carries is the IP address of UE distribution, according to pre-establishing
Each GTP tunnel ID and the IP address for each UE distribution mapping relations, determine the destination IP that the downstream IP message carries
The ID of the corresponding GTP tunnel in address；
Corresponding UE is sent to by the GTP tunnel using the downlink data as the non-IPization data of downlink.
The embodiment of the present invention additionally provides the data transmission device in a kind of narrowband honeycomb Internet of Things, including：
Receiving unit, the non-IPization data of uplink sent by GTP tunnel for receiving terminal UE, by the non-IP of the uplink
Change data to remove from the GTP tunnel；
Determination unit for the mark ID according to the GTP tunnel for receiving the non-IPization data of uplink, and pre-establishes
Each GTP tunnel ID and the IP address for each UE distribution mapping relations, determine to send the non-IPization data of uplink
UE distribution IP address；
Generation unit determines to be to send the IP address and stripping that the UE of the non-IPization data of uplink is distributed for basis
The non-IPization data of the uplink separated out, generate the uplink IP packet of the non-IPization data of the uplink；
Transmission unit, for the uplink IP packet of the non-IPization data of the uplink of generation to be sent to number by IP network
According to storage retransmission center D-MEC.
In one possible implementation, in above-mentioned data transmission device provided in an embodiment of the present invention, the life
At unit, it is specifically used for using the IP address of the UE distribution for the transmission non-IPization data of uplink as source IP address, it will
For the preconfigured IP address of D-MEC IP address as a purpose, uplink IP packet header is generated；Described in separating
The non-IPization data of uplink and the combination of the uplink IP packet header of generation generate the uplink IP reports of the non-IPization data of the uplink
Text.
In one possible implementation, in above-mentioned data transmission device provided in an embodiment of the present invention, further include：
Dispensing unit, for using network access point APN as granularity, being pre-configured with the IP address of the D-MEC.
In one possible implementation, in above-mentioned data transmission device provided in an embodiment of the present invention, further include：
Allocation unit, for determine the UE initiate attachment and established with the public data network PDN of core net connect when,
IP address is distributed for the UE；
Establish unit, for according to the corresponding GTP tunnels of the UE, establish the ID of the corresponding GTP tunnels of the UE with for
The mapping relations of the IP address of the UE distribution.
In one possible implementation, described to connect in above-mentioned data transmission device provided in an embodiment of the present invention
Receive unit, be additionally operable to receive the downstream IP message that the D-MEC is sent by IP network, by purpose IP address and downlink data from
It is removed in the downstream IP message；
The determination unit is additionally operable to determine whether the purpose IP address that the downstream IP message carries is to distribute for UE
IP address；When the purpose IP address for determining that the downstream IP message carries is the IP address of UE distribution, according to pre-establishing
Each GTP tunnel ID and the IP address for each UE distribution mapping relations, determine the destination IP that the downstream IP message carries
The ID of the corresponding GTP tunnel in address；
The transmission unit is additionally operable to send out the downlink data as the non-IPization data of downlink by the GTP tunnel
It send to corresponding UE.
The embodiment of the present invention additionally provides a kind of packet data network gateway, including above-mentioned data transmission device.
The embodiment of the present invention additionally provides the data transmission system in a kind of narrowband honeycomb Internet of Things, including：Grouped data
Net gateway P-GW stores retransmission center D-MEC with the P-GW by the data of IP link connections, and logical with the D-MEC
Cross the data server AS of IP link connections；
The P-GW, the non-IPization data of uplink sent by GTP tunnel for receiving terminal UE, by the non-IP of the uplink
Change data to remove from the GTP tunnel；According to the mark ID for the GTP tunnel for receiving the non-IPization data of uplink, and in advance
The mapping relations of the ID for each GTP tunnel first established and the IP address for each UE distribution are determined to send the non-IP of uplink
Change the IP address of the UE distribution of data；According to determine be send the non-IPization data of uplink UE distribution IP address and
The non-IPization data of the uplink separated, generate the uplink IP packet of the non-IPization data of the uplink；It will be given birth to by IP network
At the uplink IP packets of the non-IPization data of the uplink be sent to the D-MEC；
The D-MEC, for being forwarded to the AS after receiving the uplink IP packet that the P-GW is sent.
In one possible implementation, in above-mentioned data transmission system provided in an embodiment of the present invention, the D-
MEC is additionally operable to be forwarded to the P-GW after receiving the downstream IP message that the AS is sent；
The P-GW is additionally operable to receive the downstream IP message that the D-MEC is sent by IP network, by purpose IP address and
Downlink data is removed from the downstream IP message；Determine purpose IP address that the downstream IP message carries whether be UE points
The IP address matched；When the purpose IP address for determining that the downstream IP message carries is the IP address of UE distribution, according to advance
The mapping relations of the ID for each GTP tunnel established and the IP address for each UE distribution determine the mesh that the downstream IP message carries
The corresponding GTP tunnel of IP address ID；It is sent the downlink data as the non-IPization data of downlink by the GTP tunnel
To corresponding UE.
The present invention has the beneficial effect that：
A kind of data transmission method, device, system and packet data network gateway provided in an embodiment of the present invention, this method packet
It includes：The non-IPization data of uplink that terminal UE is sent by GTP tunnel are received, the non-IPization data of uplink are removed from GTP tunnel；
According to the mark ID for the GTP tunnel for receiving the non-IPization data of uplink, and the ID of each GTP tunnel pre-established divides with for each UE
The mapping relations for the IP address matched determine the IP address of the UE distribution to send the non-IPization data of uplink；According to what is determined
The UE IP address distributed to send the non-IPization data of uplink and the non-IPization data of uplink separated, generate the non-IPization number of uplink
According to uplink IP packet；The uplink IP packet of the non-IPization data of the uplink of generation is sent to data storage forwarding by IP network
Center D-MEC.Due to according to determining to be the IP address for the UE distribution for sending the non-IPization data of uplink and the uplink that separates
Non- IPization data generate the uplink IP packet of the non-IPization data of uplink so that non-IPization data can carry out in an ip network
Transmission, it is thereby achieved that in NB-IoT non-IPization data transmission, while having taken into account the compatibility transmitted with IP.
Description of the drawings
Fig. 1 is the schematic diagram of the end-to-end data transfer model of narrowband honeycomb Internet of Things in the prior art；
Fig. 2 is the flow of the non-IPization data transmission method of uplink of honeycomb Internet of Things in narrowband provided in an embodiment of the present invention
Figure；
Fig. 3 is the flow of the non-IPization data transmission method of downlink of honeycomb Internet of Things in narrowband provided in an embodiment of the present invention
Figure；
Fig. 4 is the schematic diagram of the data transmission device of honeycomb Internet of Things in narrowband provided in an embodiment of the present invention；
Fig. 5 is that the data of honeycomb Internet of Things in narrowband provided in an embodiment of the present invention are shown by the path that IP network is transmitted
It is intended to；
Fig. 6 is showing for the interface between packet data network gateway provided in an embodiment of the present invention and data storage retransmission center
One of be intended to；
Fig. 7 is showing for the interface between packet data network gateway provided in an embodiment of the present invention and data storage retransmission center
The two of intention；
Fig. 8 is the path schematic diagram provided in an embodiment of the present invention that non-IPization data transmission is carried out based on GTP tunnel；
Fig. 9 is that the data of honeycomb Internet of Things in narrowband provided in an embodiment of the present invention are transmitted to Packet Data Network's net from terminal UE
Close the schematic diagram of P-GW；
Figure 10 is the schematic diagram of the non-IPization data packet of honeycomb Internet of Things in narrowband provided in an embodiment of the present invention；
Figure 11 is the schematic diagram of the IPization data packet of honeycomb Internet of Things in narrowband provided in an embodiment of the present invention.
Specific implementation mode
Below in conjunction with the accompanying drawings, the specific embodiment party of the method for servicing to customer service system provided in an embodiment of the present invention and device
Formula is described in detail.
An embodiment of the present invention provides the data transmission methods in a kind of narrowband honeycomb Internet of Things, as shown in Fig. 2, specifically may be used
To include the following steps：
S201, the non-IPization data of uplink that are sent by GTP tunnel of terminal UE are received, by the non-IPization data of uplink from GTP
It is removed in tunnel；
S202, according to the mark ID for the GTP tunnel for receiving the non-IPization data of uplink, and each GTP tunnel for pre-establishing
ID and the IP address for each UE distribution mapping relations, determine to send the IP that the UE of uplink non-IPization data is distributed
Location；
S203, basis determine to be that the IP address for the UE distribution for sending the non-IPization data of uplink and the uplink separated are non-
IPization data generate the uplink IP packet of the non-IPization data of uplink；
S204, the uplink IP packet of the non-IPization data of the uplink of generation is sent in data storage forwarding by IP network
Heart D-MEC.
Specifically, in above-mentioned data transmission method provided in an embodiment of the present invention, determine to be to send due to basis
The IP address of the UE distribution of the non-IPization data of uplink and the non-IPization data of uplink separated, generate the non-IPization data of uplink
Uplink IP packet so that non-IPization data can be transmitted in an ip network, it is thereby achieved that non-IPization data in NB-IoT
Transmission, while having taken into account the compatibility transmitted with IP.
In the specific implementation, since the data sent out from UE can be transmitted to core net through GTP tunnel, in this hair
In the above-mentioned data transmission method that bright embodiment provides, the ID of each GTP tunnel pre-established in step S202 divides with for each UE
The mapping relations for the IP address matched can be realized in the following way：
When determining that UE initiates to adhere to and connect with the foundation of the public data network PDN of core net, IP address is distributed for UE；
According to the corresponding GTP tunnels of UE, the ID and the mapping of the IP address for UE distribution that establish the corresponding GTP tunnels of UE are closed
System.
Certainly, when the data that UE is sent out can also be transmitted to core net through the transport protocol except GTP tunnel, Ke Yitong
It is that UE distributes IP address, and establishes corresponding mapping relations to cross above-mentioned same or analogous mode, is not limited herein.
In the specific implementation, in above-mentioned data transmission method provided in an embodiment of the present invention, step S203 is according to determination
Go out the non-IPization data of uplink for being the IP address for the UE distribution for sending the non-IPization data of uplink and separating, generates the non-IP of uplink
The uplink IP packet for changing data, can specifically be accomplished by the following way：
Using the IP address of the UE distribution to send the non-IPization data of uplink as source IP address, will be pre-configured with for D-MEC
IP address IP address as a purpose, generate uplink IP packet header；
The non-IPization data of the uplink separated and the uplink IP packet header of generation are combined, the non-IPization number of uplink is generated
According to uplink IP packet.
Specifically, the specific implementation of the step S203 in above-mentioned data transmission method provided in an embodiment of the present invention
In be the preconfigured IP address of D-MEC, can be for example, by using network access point APN as granularity, being pre-configured with D-MEC's
The mode of IP address, but be not limited to aforesaid way and realized, it does not limit specifically.Preferably, to reduce the quantity of APN, it can
Using using number section as granularity.
Specifically, data transmission procedure includes transmitting uplink data and downlink data transmission, due to non-IPization data conduct
When upstream data transmission in an ip network, which carries the IP address to be distributed for UE as source IP address,
And with the uplink IP packet header for the preconfigured IP address of D-MEC IP address as a purpose, therefore, implement in the present invention
In the above-mentioned data transmission method that example provides, as shown in figure 3, can also include the following steps, using realize non-IPization data as
The transmission of downlink data in an ip network：
S301, the downstream IP messages that are sent by IP network of D-MEC are received, by purpose IP address and downlink data from downlink
It is removed in IP packet；
S302, determine whether the purpose IP address that downstream IP message carries is the IP address distributed for UE；
S303, when the purpose IP address for determining that downstream IP message carries is the IP address of UE distribution, according to building in advance
The mapping relations of the ID of vertical each GTP tunnel and the IP address for each UE distribution, with determining the destination IP that downstream IP message carries
The ID of the corresponding GTP tunnel in location；
S304, corresponding UE is sent to by GTP tunnel using downlink data as the non-IPization data of downlink.
Based on same inventive concept, the embodiment of the present invention additionally provides the data transmission dress in a kind of narrowband honeycomb Internet of Things
It sets, since the principle that the data transmission device solves the problems, such as is similar to above-mentioned data transmission method, data transmission dress
The implementation set may refer to the implementation of above-mentioned data transmission method, and overlaps will not be repeated.
Data transmission device in a kind of narrowband honeycomb Internet of Things provided in an embodiment of the present invention, as shown in figure 4, specifically may be used
To include：
Receiving unit 401, the non-IPization data of uplink sent by GTP tunnel for receiving terminal UE, by the non-IP of uplink
Change data to remove from GTP tunnel；
Determination unit 402 for the mark ID according to the GTP tunnel for receiving the non-IPization data of uplink, and pre-establishes
Each GTP tunnel ID with for each UE distribution IP address mapping relations, determine for send the non-IPization data of uplink UE
The IP address of distribution；
Generation unit 403 determines to be to send the IP address and stripping that the UE of the non-IPization data of uplink is distributed for basis
The non-IPization data of uplink separated out generate the uplink IP packet of the non-IPization data of uplink；
Transmission unit 404, for the uplink IP packet of the non-IPization data of the uplink of generation to be sent to number by IP network
According to storage retransmission center D-MEC.
Specifically, in above-mentioned data transmission device provided in an embodiment of the present invention, generation unit 403 can specifically be used
In will be send the non-IPization data of uplink UE distribute IP address as source IP address, will for the preconfigured IP of D-MEC
Location IP address as a purpose generates uplink IP packet header；By the uplink IP of the uplink separated non-IPization data and generation
Message header combines, and generates the uplink IP packet of the non-IPization data of uplink.
In the specific implementation, in above-mentioned data transmission device provided in an embodiment of the present invention, can also include：Configuration is single
Member 405, for using network access point APN as granularity, being pre-configured with the IP address of D-MEC.
In the specific implementation, in above-mentioned data transmission device provided in an embodiment of the present invention, can also include：
Allocation unit 406, for determine UE initiate attachment and with the public data network PDN of core net establish connect when,
IP address is distributed for UE；
Unit 407 is established, for according to the corresponding GTP tunnels of UE, the ID for establishing the corresponding GTP tunnels of UE to be distributed with for UE
IP address mapping relations.
Specifically, in above-mentioned data transmission device provided in an embodiment of the present invention, receiving unit 401 can be also used for
The downstream IP message that D-MEC is sent by IP network is received, purpose IP address and downlink data are removed from downstream IP message；
Determination unit 402 can be also used for determining whether the purpose IP address that downstream IP message carries is to distribute for UE
IP address；It is each according to what is pre-established when the purpose IP address for determining that downstream IP message carries is the IP address of UE distribution
The mapping relations of the ID of GTP tunnel and the IP address for each UE distribution determine that the purpose IP address that downstream IP message carries corresponds to
GTP tunnel ID；
Transmission unit 404 can be also used for being sent to pair by GTP tunnel using downlink data as the non-IPization data of downlink
The UE answered.
Based on same inventive concept, the embodiment of the present invention additionally provides a kind of packet data network gateway, due to the packet count
The principle solved the problems, such as according to net gateway is similar to above-mentioned data transmission device, and therefore, the implementation of the packet data network gateway can
With referring to the implementation of above-mentioned data transmission device, overlaps will not be repeated.
A kind of packet data network gateway provided in an embodiment of the present invention may include above-mentioned data transmission device.
Based on same inventive concept, the embodiment of the present invention additionally provides the data transmission system in a kind of narrowband honeycomb Internet of Things
System, the principle and above-mentioned packet data network gateway phase solved the problems, such as due to the data transmission system in the narrowband honeycomb Internet of Things
Seemingly, therefore, the implementation of the data transmission system in the narrowband honeycomb Internet of Things may refer to the reality of above-mentioned packet data network gateway
It applies, overlaps will not be repeated.
Data transmission system in a kind of narrowband honeycomb Internet of Things provided in an embodiment of the present invention, as shown in figure 5, specifically may be used
To include：Packet data network gateway P-GW stores retransmission center D-MEC, Yi Jiyu with P-GW by the data of IP link connections
The data server AS that D-MEC passes through IP link connections；
P-GW, the non-IPization data of uplink sent by GTP tunnel for receiving terminal UE, by the non-IPization data of uplink from
It is removed in GTP tunnel；According to the mark ID for the GTP tunnel for receiving the non-IPization data of uplink, and each GTP tunnel for pre-establishing
ID and the IP address for each UE distribution mapping relations, determine to send the IP that the UE of uplink non-IPization data is distributed
Location；According to determining to be the IP address for the UE distribution for sending the non-IPization data of uplink and the non-IPization data of uplink that separate,
Generate the uplink IP packet of the non-IPization data of uplink；The uplink IP packet of the non-IPization data of the uplink of generation is sent out by IP network
It send to D-MEC；
D-MEC, for being forwarded to AS after receiving the uplink IP packet that P-GW is sent.
In the specific implementation, in above-mentioned data transmission system provided in an embodiment of the present invention, D-MEC can be also used for
It is forwarded to P-GW after receiving the downstream IP message that AS is sent；
P-GW can be also used for receiving the downstream IP message that D-MEC is sent by IP network, by purpose IP address and downlink
Data are removed from downstream IP message；Determine whether the purpose IP address that downstream IP message carries is the IP address distributed for UE；
When the purpose IP address for determining that downstream IP message carries is the IP address of UE distribution, according to each GTP tunnel pre-established
ID with for each UE distribution IP address mapping relations, determine downstream IP message carry the corresponding GTP tunnels of purpose IP address
The ID in road；Corresponding UE is sent to by GTP tunnel using downlink data as the non-IPization data of downlink.
As can be seen that interacting message format between P-GW and D-MEC is the IP agreement message of standard, mesh when upstream data
IP address be D-MEC IP address, after being replaced to destination address according to routing table by D-MEC, be transmitted to it is corresponding its
He services；Purpose IP address is the IP address of the UE of UE distribution when downlink data, is transmitted to downlink data accordingly by P-GW
UE.
Specifically, under NB-IoT networks, the interface concentration of D-MEC and core net on the network element P-GW of core net,
In above-mentioned data transmission system provided in an embodiment of the present invention, the interface SGi between P-GW and D-MEC, as shown in Figure 6 and Figure 7.
SGi interfaces are the interface IFd2 between P-GW and D-MEC, and basic demand follows 3GPP standards 29.061.Preferably, interface
At least it is necessary to meet following condition by SGi：It can support DHCP, the tunnels such as Radius agreements and IPSEC, L2TP and GRE association
View, and can support the bis- stacks of IPv6/IPv4；The physical interfaces such as FE, GE can be provided, and multiple objects can be extended to as needed
Manage interface；Physical separation can be realized between Gn/S5/S8, charging, network management interface；3 or more physics can be supported to connect
Mouthful.
Technical solution for a better understanding of the present invention, an embodiment of the present invention provides use above-mentioned transmission side data
The specific embodiment of method, device, system and the packet data network gateway transmission packet under NB-IoT networks, such as Fig. 8 to Figure 11
It is shown.The path that data packet is transmitted under NB-IoT networks can be divided into three sections, as shown in figure 8, first segment is in UE and P-GW
Between transmission, second segment is the transmission between P-GW and D-MEC, and third section is the transmission between D-MEC and AS.
The transmission mode of transmission mode and IPization data packet of the non-IPization data packet between first segment UE and P-GW is basic
Equally.As shown in figure 9, non-IPization data packet and IPization data packet can be passed by network attached storage NAS signaling/tunnel
It is defeated.The difference of the two is only that the type of PDN carryings is different, and NB-IoT networks are not given using the UE that non-IP is carried with distributing IP
Location.
Transmission process of the non-IPization data packet between second segment P-GW and D-MEC, and third section D-MEC and AS it
Between transmission process, as shown in Figure 10.For ensure non-IPization data packet can by IP network second segment P-GW and D-MEC it
Between be transmitted, the IP address of D-MEC can be pre-configured on P-GW, using APN as granularity, wherein granularity can be number
Section.When determining that UE initiates to adhere to and connect with the PDN of core net foundation, P-GW is that UE distributes IP address；And it is corresponded to according to UE
GTP tunnel, establish the mapping relations of the ID of the corresponding GTP tunnels of UE and the IP address for UE distribution.
During uplink in non-IPization data packet by IP network from P-GW to D-MEC, then from D-MEC to AS,
After P-GW receives the non-IPization data packet of the sides UE, it is removed from GTP tunnel, and non-with the uplink separated from GTP tunnel
IPization data packet is as message content；Think that the IP address for the UE distribution for sending the non-IPization data packet of uplink is source address, and with
The IP address of D-MEC is that purpose address generates uplink IP packet header；By the non-IPization data packet of the uplink separated and uplink
IP packet header combines, and generates the uplink IP packet of the non-IPization data packet of uplink；Then by IP network by the uplink of generation
The uplink IP packet of non-IPization data packet is sent to D-MEC.
After D-MEC receives the uplink message of P-GW transmissions, on the one hand, parsing non-IPization packet content therein, and
User ID therein, and the mapping relations of User ID and the IP address for UE distribution are established, in order to which downlink data packet is sent.Separately
On the one hand, using the non-IP data packets of uplink that are separated from GTP tunnel as message content；Using the IP address of D-MEC as source address,
And uplink IP packet header is generated again by purpose address of the IP address of AS；By the non-IPization data packet of the uplink separated and
The uplink IP packet header combination generated again, generates the uplink IP packet of the non-IPization data packet of uplink again；Then pass through
The uplink IP packet of the non-IPization data packet of the uplink generated again is sent to AS by IP network.
After AS receives the uplink IP packet of the non-IPization data packet of the uplink generated again of D-MEC transmissions, by what is received
Source address in the uplink message that D-MEC is sent is converted to the IP address of AS, and destination address is converted to the IP of D-MEC
Location, in order to which downlink data packet is sent.
In downlink transmission process in non-IPization data packet by IP network from AS to D-MEC, then from D-MEC to P-GW,
It, will be with the answer number of the non-IPization data packet of uplink after D-MEC receives the reply data packet of the non-IPization data packet of uplink of AS transmissions
It is used as message content according to packet；Using the IP address of D-MEC as destination address, and distributed with the UE for the transmission non-IPization data packet of uplink
IP address be purpose address generate downlink message header；By the reply data packet and downstream IP report of the non-IPization data packet of uplink
Literary header combination, generates the downstream IP message of the non-IPization data packet of downlink；Then by IP network by the non-IP of the downlink of generation
Change the downstream IP message of data packet, and the User ID established during the uplink of non-IPization data packet is distributed with for UE
The mapping relations of IP address be sent to P-GW.
The use that P-GW receives the downlink message of D-MEC transmissions and established during the uplink of non-IPization data packet
Family ID parses the reply data of the non-IP data packets of uplink in downlink message with after the mapping relations of the IP address for UE distribution
Packet, and the User ID established during the uplink of non-IPization data packet and the mapping relations for being the IP address that UE is distributed
In User ID.And according to User ID, the reply data packet parsed is sent to corresponding terminal.
As it can be seen that in above-mentioned data pack transmission method provided in an embodiment of the present invention, device, system and packet data package net net
The Central Shanxi Plain translates to IPization data packet so that after P-GW, can utilize by being carried out on P-GW for non-IPization data packet
IP network in the prior art carries out data packet transmission and is improved simultaneously to greatly improve the durability with the paths IP
The efficiency of network entirety, and reduce the complexity of network construction.
Transmission process of the IPization data packet between second segment P-GW and D-MEC, and between third section D-MEC and AS
Transmission process, as shown in figure 11.Due in transmission process of the IPization data packet between first segment UE and P-GW, NB-IoT nets
Network is to be assigned with IP address using the IP UE carried, and therefore, IPization data packet is not required to be translated on P-GW, you can in P-GW
It is transmitted by IP network in transmission path later.
After P-GW receives the IPization data packet of the sides UE, can it be directly sent to D-MEC by IP network.D-MEC is received
After the uplink message sent to P-GW, on the one hand, parse IPization packet content therein and User ID therein, and build
The mapping relations of vertical User ID and the IP address of UE, in order to which downlink data packet is sent.On the other hand, by uplink IPization data packet
Source address be converted to the IP address of D-MEC, destination address is converted to the IP address of AS.Then it is sent it to by IP network
AS.After AS receives the uplink IPization data packet of D-MEC transmissions, the source address in the uplink IPization data packet received is converted to
The IP address of AS, and destination address is converted to the IP address of D-MEC, in order to which downlink data packet is sent.
In downlink transmission process in IPization data packet by IP network from AS to D-MEC, then from D-MEC to P-GW, D-
After MEC receives the downstream IP data packet of AS transmissions, the source address of downstream IP data packet is converted to the IP address of D-MEC,
Destination address is converted to the IP address of UE.And by the downstream IP data packet of converted source address and destination address, and in IP
The mapping relations for changing the IP address of the User ID and UE established during the uplink of data packet, P- is sent to by IP network
GW.P-GW receives the downstream IP data packet of D-MEC transmissions, and established during the uplink of IPization data packet
After the mapping relations of User ID and the IP address of UE, parse the User ID established during the uplink of IPization data packet and
User ID in the mapping relations of the IP address of UE.And according to User ID, downstream IP data packet is sent to corresponding UE.
Above-mentioned data transmission method, device, system and packet data network gateway provided in an embodiment of the present invention, this method packet
It includes：The non-IPization data of uplink that terminal UE is sent by GTP tunnel are received, the non-IPization data of uplink are removed from GTP tunnel；
According to the mark ID for the GTP tunnel for receiving the non-IPization data of uplink, and the ID of each GTP tunnel pre-established divides with for each UE
The mapping relations for the IP address matched determine the IP address of the UE distribution to send the non-IPization data of uplink；According to what is determined
The UE IP address distributed to send the non-IPization data of uplink and the non-IPization data of uplink separated, generate the non-IPization number of uplink
According to uplink IP packet；The uplink IP packet of the non-IPization data of the uplink of generation is sent to data storage forwarding by IP network
Center D-MEC.Due to according to determining to be the IP address for the UE distribution for sending the non-IPization data of uplink and the uplink that separates
Non- IPization data generate the uplink IP packet of the non-IPization data of uplink so that non-IPization data can carry out in an ip network
Transmission, it is thereby achieved that in NB-IoT non-IPization data transmission, while having taken into account the compatibility transmitted with IP.
Further, since above-mentioned data transmission method provided in an embodiment of the present invention, device, system and Packet Data Network's net
It closes, while the transmission of non-IPization data in realizing NB-IoT, can be transmitted with good simultaneous with IP in the prior art
Capacitive, therefore, above-mentioned data transmission method, device, system and packet data network gateway provided in an embodiment of the present invention are easy to real
It applies, there is good commercial value and technical barrier to be worth.
Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art
God and range.In this way, if these modifications and changes of the present invention belongs to the range of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to include these modifications and variations.
Claims (13)
1. the data transmission method in a kind of narrowband honeycomb Internet of Things, which is characterized in that including：
The non-IPization data of uplink that are sent by GTP tunnel of terminal UE are received, by the non-IPization data of the uplink from the GTP tunnels
It is removed in road；
According to the mark ID for the GTP tunnel for receiving the non-IPization data of uplink, and the ID of each GTP tunnel that pre-establishes and
For the mapping relations of the IP address of each UE distribution, the IP address of the UE distribution to send the non-IPization data of uplink is determined；
According to determine be the UE distribution for sending the non-IPization data of uplink IP address and the uplink that separates it is non-
IPization data generate the uplink IP packet of the non-IPization data of the uplink；
The uplink IP packet of the non-IPization data of the uplink of generation is sent to data by IP network and stores retransmission center D-
MEC。
2. data transmission method as described in claim 1, which is characterized in that the basis determines to be to send the uplink
The IP address of the UE distribution of non-IPization data and the non-IPization data of the uplink separated, generate the non-IPization data of the uplink
Uplink IP packet, specifically include：
The IP address that the UE to send the non-IPization data of uplink is distributed will be the D-MEC as source IP address
Preconfigured IP address IP address as a purpose generates uplink IP packet header；
The non-IPization data of the uplink separated and the uplink IP packet header of generation are combined, the non-IP of the uplink is generated
Change the uplink IP packet of data.
3. data transmission method as claimed in claim 2, which is characterized in that further include：
Using network access point APN as granularity, it is pre-configured with the IP address of the D-MEC.
4. data transmission method as described in any one of claims 1-3, which is characterized in that further include：
When determining that the UE initiates to adhere to and connect with the foundation of the public data network PDN of core net, with distributing IP for the UE
Location；
According to the corresponding GTP tunnels of the UE, the ID for establishing the corresponding GTP tunnels of the UE and the IP address for UE distribution
Mapping relations.
5. data transmission method as described in claim 1, which is characterized in that further include：
The downstream IP message that the D-MEC is sent by IP network is received, by purpose IP address and downlink data from the downlink
It is removed in IP packet；
Determine whether the purpose IP address that the downstream IP message carries is the IP address distributed for UE；
It is each according to what is pre-established when the purpose IP address for determining that the downstream IP message carries is the IP address of UE distribution
The mapping relations of the ID of GTP tunnel and the IP address for each UE distribution determine the purpose IP address that the downstream IP message carries
The ID of corresponding GTP tunnel；
Corresponding UE is sent to by the GTP tunnel using the downlink data as the non-IPization data of downlink.
6. the data transmission device in a kind of narrowband honeycomb Internet of Things, which is characterized in that including：
Receiving unit, the non-IPization data of uplink sent by GTP tunnel for receiving terminal UE, by the non-IPization number of the uplink
It is removed according to from the GTP tunnel；
Determination unit for the mark ID according to the GTP tunnel for receiving the non-IPization data of uplink, and pre-establishes each
The mapping relations of the ID of GTP tunnel and the IP address for each UE distribution are determined to send the UE of the non-IPization data of uplink
The IP address of distribution；
Generation unit, for according to determine be sends the non-IPization data of uplink UE distribute IP address with separate
The non-IPization data of the uplink, generate the uplink IP packet of the non-IPization data of the uplink；
Transmission unit is deposited for the uplink IP packet of the non-IPization data of the uplink of generation to be sent to data by IP network
Store up retransmission center D-MEC.
7. data transmission device as claimed in claim 6, which is characterized in that the generation unit, specifically for being by described in
The IP address of UE distribution of the non-IPization data of the uplink is sent as source IP address, will be the preconfigured IP of the D-MEC
Address IP address as a purpose generates uplink IP packet header；By the non-IPization data of the uplink separated and generation
Uplink IP packet header combines, and generates the uplink IP packet of the non-IPization data of the uplink.
8. data transmission device as claimed in claim 7, which is characterized in that further include：Dispensing unit, for network insertion
Point APN is granularity, is pre-configured with the IP address of the D-MEC.
9. such as claim 6-8 any one of them data transmission devices, which is characterized in that further include：
Allocation unit, for determine the UE initiate attachment and established with the public data network PDN of core net connect when, for institute
State UE distribution IP address；
Unit is established, for according to the corresponding GTP tunnels of the UE, establishing the ID of the corresponding GTP tunnels of the UE and being described
The mapping relations of the IP address of UE distribution.
10. data transmission device as claimed in claim 6, it is characterised in that：
The receiving unit is additionally operable to receive the downstream IP message that the D-MEC is sent by IP network, by purpose IP address and
Downlink data is removed from the downstream IP message；
The determination unit is additionally operable to determine whether the purpose IP address that the downstream IP message carries is for the UE IP distributed
Location；It is each according to what is pre-established when the purpose IP address for determining that the downstream IP message carries is the IP address of UE distribution
The mapping relations of the ID of GTP tunnel and the IP address for each UE distribution determine the purpose IP address that the downstream IP message carries
The ID of corresponding GTP tunnel；
The transmission unit is additionally operable to be sent to the downlink data as the non-IPization data of downlink by the GTP tunnel
Corresponding UE.
11. a kind of packet data network gateway, it is characterised in that：It is filled including such as claim 6-10 any one of them data transmission
It sets.
12. the data transmission system in a kind of narrowband honeycomb Internet of Things, which is characterized in that including：Packet data network gateway P-GW,
Retransmission center D-MEC is stored by the data of IP link connections with the P-GW, and passes through IP link connections with the D-MEC
Data server AS；
The P-GW, the non-IPization data of uplink sent by GTP tunnel for receiving terminal UE, by the non-IPization number of the uplink
It is removed according to from the GTP tunnel；According to the mark ID for the GTP tunnel for receiving the non-IPization data of uplink, and build in advance
The mapping relations of the ID of vertical each GTP tunnel and the IP address for each UE distribution are determined to send the non-IPization number of uplink
According to UE distribution IP address；According to determine be send the non-IPization data of uplink UE distribution IP address and stripping
The non-IPization data of the uplink gone out, generate the uplink IP packet of the non-IPization data of the uplink；By IP network by generation
The uplink IP packet of the non-IPization data of uplink is sent to the D-MEC；
The D-MEC, for being forwarded to the AS after receiving the uplink IP packet that the P-GW is sent.
13. data transmission system as claimed in claim 12, which is characterized in that the D-MEC is additionally operable to receive the AS hairs
The P-GW is forwarded to after the downstream IP message sent；
The P-GW is additionally operable to receive the downstream IP message that the D-MEC is sent by IP network, by purpose IP address and downlink
Data are removed from the downstream IP message；Determine whether the purpose IP address that the downstream IP message carries is to be distributed for UE
IP address；When the purpose IP address for determining that the downstream IP message carries is the IP address of UE distribution, according to pre-establishing
Each GTP tunnel ID and the IP address for each UE distribution mapping relations, determine the destination IP that the downstream IP message carries
The ID of the corresponding GTP tunnel in address；It is sent to pair by the GTP tunnel using the downlink data as the non-IPization data of downlink
The UE answered.
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