CN106454809A - Routing behind mobile station method for LTE (Long Term Evolution) system - Google Patents
Routing behind mobile station method for LTE (Long Term Evolution) system Download PDFInfo
- Publication number
- CN106454809A CN106454809A CN201610863554.3A CN201610863554A CN106454809A CN 106454809 A CN106454809 A CN 106454809A CN 201610863554 A CN201610863554 A CN 201610863554A CN 106454809 A CN106454809 A CN 106454809A
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- address
- terminal
- lte terminal
- lte
- slave computer
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W8/00—Network data management
- H04W8/26—Network addressing or numbering for mobility support
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W40/00—Communication routing or communication path finding
- H04W40/02—Communication route or path selection, e.g. power-based or shortest path routing
Abstract
The invention provides a routing behind mobile station method for an LTE (Long Term Evolution) system. The method comprises the following steps: step 1, configuring an appropriate number of IP addresses to an LTE terminal from an address pool by a PGW (Pack Data Network Gateway) at a network side according to a PDN CONNECTIVITY REQUEST requested by a terminal in combination with the quantity of allocated address pools appointed by the network side and a terminal side, and sending the IP addresses to the LTE terminal through an ACTIVATE DEFAULT EPS BEARER CONTEXT REQUEST message (carrying an IP address list); step 2, saving an IMSI (International Mobile Subscriber Identification Number) of the LET terminal and an initial address and quantity and other information of an IP segment which has been allocated to the terminal to an IP address information table of a local terminal by the PGW at the network side, so that uplink and downlink data of the LTE terminal and a lower computer thereof are subsequently forwarded by a router at a core network side; and step 3, after receiving the IP address allocated to the core network and the lower computer by the core network by the LET terminal, allocating the IP address to the lower computer, and after acquiring the IP address by the LET terminal and the lower computer thereof, performing data communication with an application server at the rear side of the core network. The routing behind mobile station method for the LTE system provided by the invention can realize the communication problem under the scene of mounting a plurality of lower computers under single LTE terminal, and satisfies more practical application scenarios.
Description
Technical field
The invention belongs to the communications field, it is related to a kind of Long Term Evolution (LTE, Long Term Evolution) the system way of escape
By method.
Background technology
In order to provide more flexible networking and access way, long evolving system (LTE, Long to mobile subscriber terminal
Term Evolution) industry proposes the concept by (Routing behind Mobile Station) for the way of escape, Ji Jiang
The lower section of LTE terminal one or more slave computer of carry again, slave computer pass through this LTE terminal can with LTE core network after
Application server communication, thus meeting the communicating requirement in some practical application scenes for the LTE system.
In LTE system, general LTE network side be access LTE terminal distribute a public network IP address so as terminal and
Network service.And in rear route system, the multiple slave computers of carry below a LTE terminal, multiple slave computers how with LTE
Network side server communication below is a problem needing to solve.
Referring to Fig. 1, single LTE terminal of the prior art is as follows with network communication mode：
After LTE terminal accesses LTE network, network side (core net) PGW passes through NAS message ACTIVATE DEFAULT EPS
BEARER CONTEXT REQUEST is one network ip address of terminal distribution.After LTE terminal obtains this IP, terminal and network
The EPS (Evolved Packet System evolved packet system) of side carries after being successfully established it is possible to carry out normal IP industry
Business communication.
Referring to Fig. 2, the multiple slave computer of prior art single LTE terminal carry and network communication mode.Core net is only single
Individual LTE terminal distributes an IP address, and the slave computer of terminal passes through NAT (Network Address Translation network ground
Location is changed) mode of mode or bridge joint connects and realizes network service in terminal, and the shortcoming of the program is that slave computer needs to be in
The same network segment；
Not to the way of escape in 3GPP (The 3rd Generation Partner Project third generation Partnership Program) agreement
Specified by related application scene and method.
Content of the invention
The invention provides method for routing after a kind of Long Term Evolution (LTE, Long Term Evolution) system.
The present invention adopts the following technical scheme that realization：
Method for routing after a kind of LTE system, the PDN Gateway PGW of network side core net and the following step of LTE terminal execution
Suddenly,
Step 1, LTE terminal is linked in network, by the NAS non-access layer information PDN of 3GPP standard
CONNECTIVITY REQUEST message log on service request；
Step 2, the PGW of network side according to the PDN CONNECTIVITY REQUEST of terminal request, in conjunction with network side with
End side agreement distribution address pool quantity, configures the IP address of respective numbers from address pool to LTE terminal, and passes through
ACTIVATE DEFAULT EPS BEARER CONTEXT REQUEST message is sent to LTE terminal；
The PGW of network side preserves the IMIS of LTE terminal and the initial address of IP section and the number that are already allocated to this terminal
Amount information is in the IP address information table of local terminal, so that the up-downgoing data of follow-up LTE terminal and its slave computer is in core net
The routing forwarding of side；
Step 3, after LTE terminal receives the IP address pond that core net is the distribution of itself and slave computer, IP address is distributed to
Slave computer；After LTE terminal and its slave computer acquisition IP address, row data communication can be entered with the application server on rear side of core net；
Step 4, when there being upstream data bag to reach core-network side, core net is according to the destination address of IP bag by data packet
By to corresponding opposite end；When there being downlink data packet to arrive at core net, core net passes through the IP address letter of storage in query steps 2
Breath table, corresponding packet is routed to LTE terminal, if the purpose IP address of downlink data packet are slave computer, by LTE eventually
End is transmitted to corresponding slave computer.
In step 2, to LTE terminal, concrete configuration method is the described IP address of respective numbers that configures from address pool：Root
Consult with LTE terminal according to core net, be LTE terminal and its slave computer distribution IP address pond, and by changing original 3GPP NAS
Increase IP Address list cell in message ACTIVATE DEFAULT EPS BEARER CONTEXT REQUEST, be intended to
The address distributing to LTE terminal and its slave computer is filled up in this cell and is sent to LTE terminal, and LTE terminal receives this NAS message
After parse this NAS message and acquire corresponding IP address pond.
In step 2, to LTE terminal, concrete configuration method is the described IP address of respective numbers that configures from address pool：?
Network design early stage, LTE terminal and core net arrange to need IP address section and the quantity of distribution in advance, and core-network side PGW is distributed
One section of continuous address pool to terminal and its slave computer, and by original 3GPP NAS message ACTIVATE DEFAULT EPS
To LTE terminal, it is the next that IP address is distributed to it according to agreement to BEARER CONTEXT REQUEST message informing by LTE terminal
Machine.
In described step 3, after LTE terminal receives the IP address pond that core net is the distribution of itself and slave computer, by IP address
Distribute to slave computer；Specific IP address distribution method, slave computer dynamically can obtain IP to LTE terminal by DHCP protocol
Address, optionally, LTE terminal can set up IP address pond and each slave computer matching relationship table one by one, using static allocation mode
Specified IP address is distributed to corresponding slave computer.
In described step 4, when there being upstream data bag to reach core-network side, core net is according to the destination address of IP bag by number
It is routed to corresponding opposite end according to bag；When there being downlink data packet to arrive at core net, core net passes through the IP of storage in query steps 2
Address information table, corresponding packet is routed to LTE terminal, if the purpose IP address of downlink data packet are slave computer,
Corresponding slave computer is transmitted to by LTE terminal.
Its general principles are, after LTE terminal accesses LTE network, network side (core net) is one group of IP of terminal distribution
Address pool, and IP address pond is distributed to by slave computer by this terminal, after LTE terminal and slave computer acquisition IP address, core Netcom
Cross Route Selection and matching technique and the up-downgoing data distribution of terminal and slave computer is routed to correct Correspondent Node, thus realizing
Terminal and slave computer all can be with server communications after core net.
Contrast prior art, the invention provides a kind of rear method for routing realizes the multiple bottom of carry under single LTE terminal
The communication issue of airport scape, the present invention does not need terminal unit to support address translation feature, largely decreases system real
Existing complexity, present invention improves over the communications framework restricted problem of the many slave computers of single LTE terminal carry of original 3GPP standard,
Only need to prior art is modified slightly, can be adapted to and meet many practical application scenes for greater flexibility.
Brief description
Fig. 1 is the communication mode schematic diagram of the single LTE terminal of prior art.
Fig. 2 is the multiple slave computer of single LTE terminal carry and the network communication mode schematic diagram of prior art.
Fig. 3 is the LTE system way of escape of the embodiment of the present invention by schematic diagram.
Specific embodiment
With reference to embodiment and accompanying drawing, the present invention is described in further detail, but embodiments of the present invention do not limit
In this.
The realization of the present invention relates generally to PGW (the PDN Gateway Pack Data Network in network side (core net)
) and LTE terminal Gateway.Referring to Fig. 3, core net of the present invention distributes one group of IP address pond for LTE terminal, and this address pool is permissible
Continuously can also be discontinuous, can also need to be distributed in different segment according to actual networking, LTE terminal and its slave computer can be straight
Connect address in this IP address pond and carry out network service.
Referring to Fig. 3, the core net of network side distributes one group of IP address pond for LTE terminal, the IP address that LTE terminal will obtain
The slave computer of carry under this terminal is distributed in pond, and core net is according to the IMSI in IP address pond and LTE terminal
Phases such as (International Mobile Subscriber Identification Number international mobile subscriber identitys)
Related parameter selects route, and for downlink data packet, the downlink data packet that network is sent to slave computer hands to LTE terminal, then
Slave computer is transmitted to by LTE terminal.The upstream data bag sending for terminal and slave computer, core net is directly forwarded to core net
Server afterwards.
In embodiment, according to the networking mode of terminal and its slave computer, core net is one group of IP address pond of terminal distribution, real
Now communicate between terminal and each slave computer and server.Implementation is as follows：
Step 1, LTE terminal is linked in network, and by the NAS of 3GPP standard, (Non-Access Stratum is non-access
Layer) message PDN CONNECTIVITY REQUEST message log on service request.
Step 2, the PGW of network side distributes one group of IP address pond for LTE terminal.And by changing NAS signaling ACTIVATE
DEFAULT EPS BEARER CONTEXT REQUEST notifies this IP address pond to LTE terminal.Optionally it is also possible to not repair
Change NAS signaling, PGW only needs to arrange consensus in advance with LTE terminal, default reserves IP address pond scale and size.
The PGW of network side preserves the IMIS of LTE terminal and the initial address of IP section and the number that are already allocated to this terminal
Amount information is in the IP address information table of local terminal, so that the up-downgoing data of follow-up LTE terminal and its slave computer is in core net
The routing forwarding of side；
Step 3, after LTE terminal receives core net distribution IP address pond, selects an IP to distribute to often in secondary IP address pond
Individual slave computer, slave computer starts to enter row data communication with network side after obtaining IP address.
Slave computer can be by way of DHCP (Dynamic Host Configuration Protocol) protocol dynamic ground
Obtain IP address to LTE terminal, optionally, LTE terminal can also set up IP address pond and each slave computer matching relationship table one by one,
Specified IP address is distributed to by corresponding slave computer using static allocation mode.Step 4, reaches core when there being upstream data bag
During net side, core net routes a data packet to corresponding opposite end according to the destination address of IP bag.Arrive at core when there being downlink data packet
During heart net, core net passes through the IP address information table of storage in query steps 2, corresponding packet is routed to LTE terminal, such as
The purpose IP address of fruit downlink data packet are slave computer, then be transmitted to corresponding slave computer by LTE terminal.
Examples detailed above is the present invention preferably embodiment, but embodiments of the present invention are not limited by above-described embodiment
System, other any spirit not running counter to the present invention and the change made under principle, modification, replacement, combine, simplifying all should
For equivalent substitute mode, it is included within protection scope of the present invention.
Claims (5)
1. after a kind of LTE system method for routing it is characterised in that：The PDN Gateway PGW of network side core net and LTE terminal are held
Row following steps,
Step 1, LTE terminal is linked in network, by the NAS non-access layer information PDNCONNECTIVITY of 3GPP standard
REQUEST message log on service request；
Step 2, the PGW of network side according to the PDN CONNECTIVITY REQUEST of terminal request, in conjunction with network side and terminal
Side agreement distribution address pool quantity, configures the IP address of respective numbers from address pool to LTE terminal, and passes through ACTIVATE
DEFAULT EPS BEARER CONTEXT REQUEST message is sent to LTE terminal；
The PGW of network side preserves the IMIS of LTE terminal and is already allocated to the initial address of IP section and the quantity letter of this terminal
Cease in the IP address information table of local terminal, so that the up-downgoing data of follow-up LTE terminal and its slave computer is in core-network side
Routing forwarding；
Step 3, after LTE terminal receives the IP address pond that core net is the distribution of itself and slave computer, IP address is distributed to bottom
Machine；After LTE terminal and its slave computer acquisition IP address, row data communication can be entered with the application server on rear side of core net；
Step 4, when there being upstream data bag to reach core-network side, core net routes a data packet to according to the destination address of IP bag
Corresponding opposite end；When there being downlink data packet to arrive at core net, core net passes through the IP address information of storage in query steps 2
Table, corresponding packet is routed to LTE terminal, if the purpose IP address of downlink data packet are slave computer, by LTE terminal
It is transmitted to corresponding slave computer.
2. after a kind of LTE system according to claim 1 method for routing it is characterised in that：In step 2, described from address
The IP address of respective numbers is configured to LTE terminal, concrete configuration method is in pond：Consulted with LTE terminal according to core net, be
LTE terminal and its slave computer distribution IP address pond, and by changing original 3GPP NAS message ACTIVATE DEFAULT EPS
Increase IP Address list cell in BEARER CONTEXT REQUEST, be intended to distribute to LTE terminal and its slave computer
Address is filled up in this cell and is sent to LTE terminal, and LTE terminal parses this NAS message and acquires accordingly after receiving this NAS message
IP address pond.
3. after a kind of LTE system according to claim 1 method for routing it is characterised in that：In step 2, described from address
The IP address of respective numbers is configured to LTE terminal, concrete configuration method is in pond：In network design early stage, LTE terminal and core
Net arranges to need IP address section and the quantity of distribution in advance, core-network side PGW distribute one section of continuous address pool to terminal and its
Slave computer, and by original 3GPP NAS message ACTIVATE DEFAULT EPS BEARER CONTEXT REQUEST message
Notify to LTE terminal, IP address is distributed to its slave computer according to agreement by LTE terminal.
4. after a kind of LTE system according to claim 1 method for routing it is characterised in that：In described step 3, LTE terminal
After receiving the IP address pond that core net is the distribution of itself and slave computer, IP address is distributed to slave computer；Specific IP address is divided
Method of completing the square is：Slave computer dynamically can obtain IP address to LTE terminal by DHCP protocol, and optionally, LTE terminal can be built
Specified IP address is distributed to corresponding by vertical IP address pond and each slave computer matching relationship table one by one using static allocation mode
Slave computer.
5. after a kind of LTE system according to claim 1 method for routing it is characterised in that：In described step 4, on having
When row packet reaches core-network side, core net routes a data packet to corresponding opposite end according to the destination address of IP bag；When having
When downlink data packet arrives at core net, core net passes through the IP address information table of storage in query steps 2, by corresponding packet
It is routed to LTE terminal, if the purpose IP address of downlink data packet are slave computer, corresponding bottom is transmitted to by LTE terminal
Machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610863554.3A CN106454809A (en) | 2016-09-29 | 2016-09-29 | Routing behind mobile station method for LTE (Long Term Evolution) system |
Applications Claiming Priority (1)
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| CN201610863554.3A CN106454809A (en) | 2016-09-29 | 2016-09-29 | Routing behind mobile station method for LTE (Long Term Evolution) system |
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ID=58169666
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108616612A (en) * | 2018-04-09 | 2018-10-02 | 海能达通信股份有限公司 | A kind of downlink data transmission method and device |
| CN108900657A (en) * | 2018-08-23 | 2018-11-27 | 福建三元达网络技术有限公司 | LTE terminal data routing method and system under a kind of PGW pond networking |
| CN109089295A (en) * | 2018-08-10 | 2018-12-25 | 武汉虹信通信技术有限责任公司 | A kind of two-way communication of the more lower computer systems of LTE |
| CN110138886A (en) * | 2018-02-09 | 2019-08-16 | 成都鼎桥通信技术有限公司 | A method of to hang back-up under WLAN hot spot with IP address |
| CN111711568A (en) * | 2020-04-17 | 2020-09-25 | 新华三技术有限公司成都分公司 | Message processing method and processing device |
| US11012352B2 (en) | 2017-10-16 | 2021-05-18 | Edgemicro Corp. | Traffic offloading for mobile operators |
| CN115086276A (en) * | 2022-07-14 | 2022-09-20 | 中国联合网络通信集团有限公司 | Address management method, device, equipment and system |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11012352B2 (en) | 2017-10-16 | 2021-05-18 | Edgemicro Corp. | Traffic offloading for mobile operators |
| CN110138886A (en) * | 2018-02-09 | 2019-08-16 | 成都鼎桥通信技术有限公司 | A method of to hang back-up under WLAN hot spot with IP address |
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| CN109089295A (en) * | 2018-08-10 | 2018-12-25 | 武汉虹信通信技术有限责任公司 | A kind of two-way communication of the more lower computer systems of LTE |
| CN108900657A (en) * | 2018-08-23 | 2018-11-27 | 福建三元达网络技术有限公司 | LTE terminal data routing method and system under a kind of PGW pond networking |
| CN108900657B (en) * | 2018-08-23 | 2022-03-18 | 安科讯(福建)科技有限公司 | LTE terminal data routing method and system under PGW battery pack network |
| CN111711568A (en) * | 2020-04-17 | 2020-09-25 | 新华三技术有限公司成都分公司 | Message processing method and processing device |
| CN115086276A (en) * | 2022-07-14 | 2022-09-20 | 中国联合网络通信集团有限公司 | Address management method, device, equipment and system |
| CN115086276B (en) * | 2022-07-14 | 2023-04-25 | 中国联合网络通信集团有限公司 | Address management method, device, equipment and system |
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Application publication date: 20170222 |
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