CN104735690A - SGSN selection method and system for terminal under fusion pool networking and equipment - Google Patents
SGSN selection method and system for terminal under fusion pool networking and equipment Download PDFInfo
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- CN104735690A CN104735690A CN201310705495.3A CN201310705495A CN104735690A CN 104735690 A CN104735690 A CN 104735690A CN 201310705495 A CN201310705495 A CN 201310705495A CN 104735690 A CN104735690 A CN 104735690A
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- equipment
- terminal
- sgsn
- network
- mme
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/14—Reselecting a network or an air interface
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/02—Terminal devices
- H04W88/06—Terminal devices adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals
Abstract
The invention discloses an SGSN selection method and system for a terminal under fusion pool networking and equipment. The problems that signaling redundancy, network loads and network time delay are caused when the LTE multi-mode terminal is connected with the pure SGSN equipment during initial connection with a 2G or 3G network and switched from the SGSN equipment to an MME during follow-up connection with an LTE network are avoided. The method comprises the steps of judging whether the terminal which is initially connected with the 2G or 3G mobile communication network is an LTE multi-mode terminal or not; if the terminal is the LTE multi-mode terminal, selecting the equipment fusing the MME with the SGSN from a fusion pool, and enabling the terminal to be connected with the equipment fusing the MME with the SGSN; if not, randomly selecting the network equipment from the fusion pool, and enabling the terminal to be connected with the network equipment.
Description
Technical field
The present invention relates to communication technical field, particularly relate to a kind of terminal and merging method, the equipment and system of selecting SGSN under pond networking.
Background technology
Merge Mobility Management Entity (Mobility Management Entity, MME) and general packet radio service support node (Serving GPRS Support Node, SGSN; General Packet RadioService, GPRS) equipment, be called for short and merge MME/SGSN equipment, be called the equipment merging MME and SGSN herein, comprise SGSN and MME two logic entities.
In Generation Mobile Telecommunication System (2G) network and 3G (Third Generation) Moblie (3G) network, merge MME/SGSN equipment as SGSN, perform the functions such as mobile management, safety management, access control and Route Selection, require packet data protocol (Packet DataProtocol, the PDP) type supporting Internet protocol the 4th edition (IPv4), at Long Term Evolution (Long Term Evolution, LTE) in network, merge MME/SGSN equipment as MME, support Non-Access Stratum (Non Access Stratum, NAS) signaling and fail safe thereof, the management of tracing area (Tracking Area) list, packet data gateway (PacketGateway, and gateway (Serving Gateway P-GW), S-GW) selection, the selection of MME when switching across MME, in the selection to SGSN in 2G or 3G connecting system handoff procedure, the authentication of user, Roaming control and bearer management, mobile management between the core network node of 3rd Generation Partnership Project (3GPP) different access networks, and subscriber equipment (UserEquipment, UE) at ECM-IDLE(EPS Connection Management-Idle, EPS Connection Management Idle state, usually directly Idle state is called, EPS refers to Evolved Packet System) accessibility management etc. under state.
SGSN pond group (SGSN POOL) scheme is based on 3GPP TS23.236 standard, SGSN POOL is with the mechanism of pond prescription formula work, break base station controller (Base Station Controller, or radio network controller (Radio Network Controller BSC), RNC) man-to-man control planning and between SGSN, achieve connection route function in BSC or RNC node to the territory of multiple SGSN, allow BSC or RNC node that information is routed to different CN(CoreNetwork in corresponding packet switching (PS) territory, core net) node, SGSN is with the large service area of pond prescription formula common service one, in pond, each BSC or RNC is connected entirely with the control logic relation of each SGSN.
Merge pond to refer in this pond group containing SGSN and fusion MME/SGSN equipment.
At present, support the LTE multi mode terminal of LTE and 2G/3G network simultaneously, when initial access 2G or 3G network, understand Stochastic choice SGSN in fusion and access, therefore, LTE multi mode terminal both may access simple SGSN equipment, also likely MME/SGSN equipment is merged in access, its networking mode as shown in Figure 1, wherein dotted line represents Stochastic choice in fusion pond, in accompanying drawing 1, LTE multi mode terminal is when accessing 2G network, accessed by base station (BTS) random selection device from fusion pond, when accessing 3G network, accessed by base station (NodeB) random selection device from fusion pond, when accessing LTE network, selected to merge MME/SGSN equipment access from fusion pond by evolution base station (eNodeB).
If LTE multi mode terminal has accessed simple SGSN equipment, when this LTE multi mode terminal switches to LTE network from 2G or 3G network, need to be switched to MME from SGSN equipment or to merge MME/SGSN equipment.Terminal is switched to MME from SGSN equipment or merges MME/SGSN equipment to be needed to operate between more net, adds signaling redundancy and network burden, meanwhile, also can increase time delay, reduce Consumer's Experience.
Summary of the invention
The invention provides a kind of terminal and merge method, the equipment and system of selecting SGSN under pond networking, in order to avoid LTE multi mode terminal to access simple SGSN equipment when initial access 2G or 3G network, what cause follow-uply switches to from SGSN signaling redundancy, network burden and the network delay that MME causes when switching to LTE network.
The concrete technical scheme that the embodiment of the present invention provides is as follows:
Terminal selects a method of SGSN under pond networking merging, comprising:
Judge whether the terminal of initial access Generation Mobile Telecommunication System 2G or 3G (Third Generation) Moblie 3G network belongs to Long Term Evolution LTE multi mode terminal;
If, from merging pond the equipment selecting to merge Mobility Management Entity MME and general packet radio service support node SGSN, and by the equipment of the described fusion of described terminal access MME and SGSN, described fusion pond comprises SGSN equipment and merges the equipment of MME and SGSN;
Otherwise, the Stochastic choice network equipment from described fusion pond, and described terminal is accessed the described network equipment.
A kind of access device, comprising:
Processing module, whether the terminal for judging initially to access Generation Mobile Telecommunication System 2G or 3G (Third Generation) Moblie 3G network belongs to Long Term Evolution LTE multi mode terminal;
Select module, during for determining that described terminal belongs to LTE multi mode terminal, from merging pond the equipment selecting to merge Mobility Management Entity MME and SGSN, and by the equipment of the described fusion of described terminal access MME and SGSN, described fusion pond comprises SGSN equipment and merges the equipment of MME and SGSN; And when determining that described terminal does not belong to LTE multi mode terminal, the Stochastic choice network equipment from described fusion pond, and described terminal is accessed the described network equipment.
Terminal selects a system of SGSN under pond networking merging, comprising:
Terminal, for initiating initial access process to the network equipment in Generation Mobile Telecommunication System 2G or 3G (Third Generation) Moblie 3G network;
Access device, for judging whether the terminal initiating initial access process belongs to Long Term Evolution LTE multi mode terminal, if, from merging pond the equipment selecting to merge Mobility Management Entity MME and SGSN, and by the equipment of the described fusion of described terminal access MME and SGSN, described fusion pond comprises SGSN equipment and merges the equipment of MME and SGSN, otherwise, the Stochastic choice network equipment from described fusion pond, and described terminal is accessed the described network equipment.
Based on technique scheme, in the embodiment of the present invention, when the terminal determining initially to access 2G or 3G network is LTE multi mode terminal, from merging pond the equipment selecting to merge MME and SGSN, and terminal is accessed the equipment of this fusion MME and SGSN; When the terminal determining initially to access 2G or 3G network is not LTE multi mode terminal, the Stochastic choice network equipment from fusion pond, and this terminal is accessed this network equipment, thus make directly to access at the LTE multi mode terminal of initial access 2G or 3G network the equipment merging MME and SGSN, without the need to switching to MME when switching to LTE network from SGSN, avoiding the simple SGSN equipment of access for the follow-up LTE network that switches to and carrying out signaling redundancy, network burden and the network delay that network equipment switching causes.
Accompanying drawing explanation
Fig. 1 is the networking structure schematic diagram of terminal initial access network in prior art;
Fig. 2 is that in the embodiment of the present invention, terminal is merging the method flow diagram selecting SGSN under pond networking;
Fig. 3 is the structural representation of access device in the embodiment of the present invention;
Fig. 4 is the system architecture schematic diagram of access network in the embodiment of the present invention;
Fig. 5 is the schematic flow sheet of terminal initial access in the specific embodiment of the invention.
Embodiment
In order to avoid LTE multi mode terminal is at initial access 2G or 3G(TD) network time access simple SGSN equipment, what caused follow-uply switches to from SGSN signaling redundancy, network burden and the network delay that MME causes when switching to LTE network, embodiments provides a kind of terminal and is merging method, the equipment and system of selecting SGSN under pond networking.
Below in conjunction with accompanying drawing, the preferred embodiment of the present invention is described in detail.
In following embodiment, LTE multi mode terminal refers to the terminal supporting LTE network, simultaneously compatible 3G network and 2G network.
In first embodiment of the invention, as shown in Figure 2, merging the method selecting SGSN under pond networking when providing a kind of accessing terminal to network, detailed process is as follows:
Step 201: judge whether the terminal of initial access 2G or 3G network belongs to LTE multi mode terminal.
Wherein, if terminal initial access 2G network, the executive agent equipment of the method is BSC; If terminal initial access 3G network, the executive agent equipment of the method is by RNC.
In concrete enforcement, judge whether terminal belongs to LTE multi mode terminal, specifically comprises:
Resolve the attachment request (Attach Req) in Non-Access Stratum (Non Access Stratum, the NAS) message in initial access process, according to the ability information of the terminal of carrying in this attachment request, judge whether terminal is LTE multi mode terminal.
Wherein, the ability information of terminal at least comprises the network schemer that terminal is supported, such as, and LTE network pattern, 2G network schemer, 3G network pattern etc.
Such as, the identification information of the network schemer that carried terminal is supported in the attachment request of NAS message, determines by the mark of resolving the network schemer carried in the attachment request of this NAS message the network schemer that this terminal is supported.
Particularly, if terminal initial access 2G network, received by BSC and resolve the attachment request in NAS message; If terminal initial access 3G network, is received by RNC and resolves the attachment request in NAS message.
Step 202: when determining that terminal belongs to LTE multimode terminal, from merging pond the equipment selecting to merge MME and SGSN, and accesses the equipment of this fusion MME and SGSN by terminal.
Wherein, merge pond to comprise simple SGSN, merge the equipment of SGSN and MME.
Preferably, the type and routing iinformation thereof that merge each network equipment in the group of pond is preserved in advance at BSC or RNC.
In concrete enforcement, determine the equipment of arbitrary fusion MME and SGSN according to the type of each network equipment in the fusion pond group of preserving in advance, according to the routing iinformation of the equipment of described fusion MME and SGSN determined, described terminal is accessed the described equipment merging MME and SGSN.
Step 203: when determining that terminal does not belong to LTE multimode terminal, the Stochastic choice network equipment from fusion pond, and by accessing terminal to network equipment.
In practical application, from fusion pond during the Stochastic choice network equipment, can select according to the algorithm of setting, can network quality be ensured after making accessing this terminal.
Based on identical principle, in second embodiment of the invention, as shown in Figure 3, provide a kind of access device of access network, the concrete enforcement of this access device can see the description of said method part, and this access device mainly comprises:
Processing module 301, for judging whether the terminal initially accessing 2G or 3G network belongs to LTE multi mode terminal;
Selecting module 302, during for determining that terminal belongs to LTE multi mode terminal, from merging pond the equipment selecting to merge MME and SGSN, and terminal being accessed the equipment of this fusion MME and SGSN; And when determining that terminal does not belong to LTE multi mode terminal, the Stochastic choice network equipment from fusion pond, and terminal is accessed this network equipment.
In concrete enforcement, processing module 301 specifically for:
Resolve the attachment request (Attach Req) in Non-Access Stratum (NAS) message in initial access process, according to the ability information of the terminal of carrying in this attachment request, judge whether this terminal is LTE multi mode terminal.
Wherein, the ability information of terminal at least comprises the branched network schemer held of terminal, such as, and LTE network pattern, 2G network schemer, 3G network pattern etc.
Wherein, if the network of terminal initial access is 2G network, the access device that the present embodiment provides is base station controller BSC; If the network of terminal initial access is 3G network, the access device that the present embodiment provides is radio network controller (RNC).
Preferably, this access device also comprises memory module 303, merges the type of each network equipment and the routing iinformation of each network equipment in the group of pond for preserving;
Select module 302 specifically for:
Determine the equipment of arbitrary fusion MME and SGSN according to the type of each network equipment in the fusion pond group of preserving in memory module 303, according to the routing iinformation of the equipment of fusion MME and SGSN determined, terminal is accessed the equipment of this fusion MME and SGSN.
Based on identical principle, in third embodiment of the invention, as shown in Figure 4, provide a kind of terminal and merging the system selecting SGSN under pond networking, the main enforcement of this system can see the description of said method part, and this system mainly comprises terminal 401 and access device 402, wherein
Terminal 401, for initiating initial access process to the network equipment in 2G or 3G network;
Access device 402, for judging whether the terminal initiating initial access process belongs to LTE multi mode terminal, if, from merging pond the equipment selecting to merge MME and SGSN, and this terminal is accessed the equipment of this fusion MME and SGSN, otherwise, the Stochastic choice network equipment from fusion pond, and this terminal is accessed this network equipment.
In concrete enforcement, access device 402 specifically for:
Resolve the attachment request (Attach Req) in Non-Access Stratum (NAS) message in initial access process, according to the ability information of the terminal of carrying in attachment request, judge whether this terminal is LTE multi mode terminal.
Wherein, the ability information of terminal at least comprises the branched network schemer held of terminal, such as, and LTE network pattern, 2G network schemer, 3G network pattern etc.
Wherein, if terminal initial access 2G network, access device is base station controller BSC; If terminal initial access 3G network, access device is radio network controller (RNC).
Preferably, access device specifically for:
Determine the equipment of arbitrary fusion MME and SGSN according to the type of each network equipment in the fusion pond group of preserving in advance, according to the routing iinformation of the equipment of fusion MME and SGSN determined, terminal is accessed the equipment of this fusion MME and SGSN.
Below by way of a specific embodiment, the method that the terminal initial that the embodiment of the present invention provides accesses 2G or 3G network is described in detail, as shown in Figure 5, specifically comprises the following steps:
In this specific embodiment, for terminal initial access 3G network, when terminal initial access 3G network, access device is RNC, if terminal initial access 2G network, it will be understood by those skilled in the art that and adopts BSC to replace RNC, below repeat no more.
Step 501: terminal initiates initial access process to RNC;
Step 502:RNC resolves the attachment request (Attach Req) in Non-Access Stratum (NAS) message in initial access process, according to the ability information of the terminal of carrying in attachment request, judges whether this terminal is LTE multi mode terminal, if, perform step 503, otherwise, perform step 504;
Step 503: the equipment determining arbitrary fusion MME and SGSN according to the type of each network equipment in the fusion pond of preserving in advance, accesses the equipment of this fusion MME and SGSN by terminal according to the routing iinformation of the equipment of fusion MME and SGSN determined;
Step 504: the Stochastic choice network equipment from fusion pond, and this terminal is accessed this network equipment.
Based on technique scheme, in the embodiment of the present invention, when the terminal determining initially to access 2G or 3G network is LTE multi mode terminal, from merging pond the equipment selecting to merge MME and SGSN, and terminal is accessed the equipment of this fusion MME and SGSN, when the terminal determining initially to access 2G or 3G network is not LTE multi mode terminal, the Stochastic choice network equipment from fusion pond, and this terminal is accessed this network equipment, thus make directly to access at the LTE multi mode terminal of initial access 2G or 3G network the equipment merging MME and SGSN, without the need to switching to MME when switching to LTE network from SGSN, avoiding the simple SGSN equipment of access for the follow-up LTE network that switches to carries out the signaling redundancy that network equipment switching causes, network burden and network delay, decrease wireless and network load that is core net, improve response speed, and then improve Consumer's Experience.
Obviously, those skilled in the art can carry out various change and modification to the present invention and not depart from the spirit and scope of the present invention.Like this, if these amendments of the present invention and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention is also intended to comprise these change and modification.
Claims (12)
1. terminal is merging the method selecting SGSN under pond networking, it is characterized in that, comprising:
Judge whether the terminal of initial access Generation Mobile Telecommunication System 2G or 3G (Third Generation) Moblie 3G network belongs to Long Term Evolution LTE multi mode terminal;
If, from merging pond the equipment selecting to merge Mobility Management Entity MME and general packet radio service support node SGSN, and by the equipment of the described fusion of described terminal access MME and SGSN, described fusion pond comprises SGSN equipment and merges the equipment of MME and SGSN;
Otherwise, the Stochastic choice network equipment from described fusion pond, and described terminal is accessed the described network equipment.
2. the method for claim 1, is characterized in that, judges whether the terminal of access network belongs to Long Term Evolution LTE multi mode terminal, specifically comprises:
Resolve the attachment request Attach Req in non access stratum NAS message, according to the ability information of the described terminal of carrying in described attachment request, judge whether described terminal is LTE multi mode terminal.
3. method as claimed in claim 2, is characterized in that, resolves the attachment request Attach Req in non access stratum NAS message, comprises;
If described terminal initial access 2G network, is received by base station controller BSC and resolves the attachment request in described NAS message;
If described terminal initial access 3G network, is received by radio network controller (RNC) and resolves the attachment request in described NAS message.
4. the method as described in claim 1,2 or 3, is characterized in that, from merging pond the equipment selecting to merge Mobility Management Entity MME and SGSN, and by the equipment of the described fusion of described terminal access MME and SGSN, comprising:
Determine the equipment of arbitrary fusion MME and SGSN according to the type of each network equipment in the fusion pond group of preserving in advance, according to the routing iinformation of the equipment of described fusion MME and SGSN determined, described terminal is accessed the described equipment merging MME and SGSN.
5. an access device, is characterized in that, comprising:
Processing module, whether the terminal for judging initially to access Generation Mobile Telecommunication System 2G or 3G (Third Generation) Moblie 3G network belongs to Long Term Evolution LTE multi mode terminal;
Select module, during for determining that described terminal belongs to LTE multi mode terminal, from merging pond the equipment selecting to merge Mobility Management Entity MME and SGSN, and by the equipment of the described fusion of described terminal access MME and SGSN, described fusion pond comprises SGSN equipment and merges the equipment of MME and SGSN; And when determining that described terminal does not belong to LTE multi mode terminal, the Stochastic choice network equipment from described fusion pond, and described terminal is accessed the described network equipment.
6. access device as claimed in claim 5, is characterized in that, described processing module specifically for:
Resolve the attachment request Attach Req in non access stratum NAS message, according to the ability information of the described terminal of carrying in described attachment request, judge whether described terminal is LTE multi mode terminal.
7. access device as claimed in claim 6, is characterized in that, if the network of described terminal initial access is 2G network, described access device is base station controller BSC;
If the network of described terminal initial access is 3G network, described access device is radio network controller (RNC).
8. the access device as described in claim 5,6 or 7, is characterized in that, also comprise memory module, merges the type of each network equipment and the routing iinformation of each network equipment in the group of pond for preserving;
Described selection module specifically for:
Determine the equipment of arbitrary fusion MME and SGSN according to the type of each network equipment in the fusion pond of preserving in described memory module, according to the routing iinformation of the equipment of described fusion MME and SGSN determined, described terminal is accessed the described equipment merging MME and SGSN.
9. terminal is merging the system selecting SGSN under pond networking, it is characterized in that, comprising:
Terminal, for initiating initial access process to the network equipment in Generation Mobile Telecommunication System 2G or 3G (Third Generation) Moblie 3G network;
Access device, for judging whether the terminal initiating initial access process belongs to Long Term Evolution LTE multi mode terminal, if, from merging pond the equipment selecting to merge Mobility Management Entity MME and SGSN, and by the equipment of the described fusion of described terminal access MME and SGSN, described fusion pond comprises SGSN equipment and merges the equipment of MME and SGSN, otherwise, the Stochastic choice network equipment from described fusion pond, and described terminal is accessed the described network equipment.
10. system as claimed in claim 9, is characterized in that, described access device specifically for:
Resolve the attachment request Attach Req in non access stratum NAS message in initial access process, according to the ability information of the described terminal of carrying in described attachment request, judge whether described terminal is LTE multi mode terminal.
11. systems as claimed in claim 10, is characterized in that, if described terminal initial access 2G network, described access device is base station controller BSC;
If described terminal initial access 3G network, described access device is radio network controller (RNC).
12. systems as described in claim 9,10 or 11, is characterized in that, described access device specifically for:
Determine the equipment of arbitrary fusion MME and SGSN according to the type of each network equipment in the fusion pond of preserving in advance, according to the routing iinformation of the equipment of described fusion MME and SGSN determined, described terminal is accessed the described equipment merging MME and SGSN.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310705495.3A CN104735690A (en) | 2013-12-19 | 2013-12-19 | SGSN selection method and system for terminal under fusion pool networking and equipment |
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| CN201310705495.3A CN104735690A (en) | 2013-12-19 | 2013-12-19 | SGSN selection method and system for terminal under fusion pool networking and equipment |
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| US20070213059A1 (en) * | 2006-03-09 | 2007-09-13 | Interdigital Technology Corporation | Wireless communication method and system for performing handover between two radio access technologies |
| CN101448297A (en) * | 2008-03-14 | 2009-06-03 | 中兴通讯股份有限公司 | Routing method of combined network elements |
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Application publication date: 20150624 |