CN103686906B - Method for switching network, terminal equipment and gateway equipment - Google Patents
Method for switching network, terminal equipment and gateway equipment Download PDFInfo
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Abstract
The invention provides a method for switching a network, terminal equipment and gateway equipment. The method comprises the steps that whether PS services and CS services exist in the current network at the same time or not is determined by the terminal equipment; if the PS services and the CS services exist in the current network at the same time, whether the PS services and the CS services meet a switching condition or not is determined; if the PS services and the CS services meet the switching condition, the identification information of a first network element is acquired, wherein an opposite terminal service communication party in the CS services belongs to the first network element; a PS service switching request is sent to second gateway equipment of a target network through the first gateway equipment in the current network, and the switching request comprises the contextual information of the PS services and the identification information so that the second gateway equipment can switch the PS services and the CS services into the target network according to the contextual information and the identification information. The switching request of the PS services and the switching request of the CS services can be sent to the second PS gateway equipment simultaneously through the one-time communication connection of the first gateway equipment and the second gateway equipment of the target network, the complex interaction process of related switching interfaces is simplified, and the switching success rate is improved.
Description
Technical field
The invention belongs to wireless communication technology field, it is specifically related to a kind of method for switching network, terminal unit and gateway
Equipment.
Background technology
With the development of Long Term Evolution project (long term evolution, hereinafter referred to as lte) network technology, lte net
Network has covered a lot of hot zones so that in current communication system, lte network and G mobile communication
(3rd-generation, hereinafter referred to as 3g) is network coexisted.As a kind of packet domain (packet switch, hereinafter referred to as ps)
The packet switching system that domain carries, lte network can support the data service of high speed, and voice class business can only be in its packet
Domain is transmitted on carrying.In order to make full use of the high-rate characteristics of lte network, terminal needs ongoing to lead in many cases
Communication service is from current 3g network switching to lte network.
Because, in 3g network, data service is carried on ps domain, and speech business is carried on circuit domain (circuit
Switch, hereinafter referred to as cs) on, therefore, in data service with speech business simultaneously need to when switching over, terminal need to be by not
Set up respectively with network element between ps domain and the ps domain of lte network of the cs domain of 3g network and the ps domain of lte network and 3g network
Transmission channel.Specifically, in prior art, if terminal need to by ps business and cs business from 3g network switching to lte network,
After determining the related objective network element in lte network, terminal need to be by processing the network equipment such as gprs clothes of ps business in 3g network
Business supporting node sets up transmission channel, to complete the switching of ps business with this target network element；Meanwhile, terminal is passed through to locate in 3g network
The network equipment such as base station, mobile switching centre etc. of reason cs business are set up with this target network element and are connected, because this target network element is
Ps domain network element, the network equipment processing cs business in 3g network both needs to complete the access process to this target network element for the terminal, and
Need to complete cs domain to changing between the domain in ps domain.
The above-mentioned side setting up transmission channel respectively by cs business network equipment and ps business network equipment and target network element
Formula, needs terminal that twice connection with target network element is established independently, and due to cs business network equipment and target network element carrying
The difference of business, also needs to carry out between domain the interaction such as conversion between the two so that network switching process is related to multiple LA Management Rooms
Interaction, interaction is numerous and diverse.
Content of the invention
For problems of the prior art, the present invention provides a kind of method for switching network, terminal unit and gateway to set
Standby, in order to overcome during network switching in prior art the defect that rete mirabile interactive interfacing is complicated, handover failure rate is high.
The invention provides a kind of method for switching network, comprising:
Terminal unit determines whether there is to be switched packet domain ps business and circuit domain cs business in current network simultaneously；
If existing, described terminal unit determines whether to meet switching condition；
If meeting, described terminal unit obtains the mark of the first network element of opposite end service communication side ownership in described cs business
Knowledge information；
The first gateway device that described terminal unit passes through in current network sends to the second gateway device of objective network
Ps business handover request, described handover request includes the contextual information of described ps business and described identification information, so that institute
State the second gateway device according to described contextual information and described identification information, described ps business and cs business are switched to target
In network, described first gateway device and described second gateway device are ps gateway device.
The invention provides another method for switching network, comprising:
Second gateway device receiving terminal apparatus of objective network pass through the ps that the first gateway device of current network sends
Business handover request, described handover request be described terminal unit determine exist simultaneously to be switched ps business and cs business with
And send after meeting switching condition, described handover request is included in the contextual information and described cs business of described ps business
The identification information of the first network element of opposite end service communication side ownership, described first gateway device and described second gateway device are
Ps gateway device；
Described second gateway device according to described contextual information and described identification information, by described ps business and cs business
Switch in objective network.
The invention provides a kind of terminal unit, comprising:
First determining module, for determining whether there is to be switched packet domain ps business and circuit in current network simultaneously
Domain cs business；
Second determining module, is used to determine whether to meet switching condition；
Acquisition module, for obtaining the identification information of the first network element of opposite end service communication side ownership in described cs business；
Sending module, for being sent to the second gateway device of objective network by the first gateway device in current network
Ps business handover request, described handover request includes the contextual information of described ps business and described identification information, so that institute
State the second gateway device according to described contextual information and described identification information, described ps business and cs business are switched to target
In network, described first gateway device and described second gateway device are ps gateway device.
The invention provides a kind of gateway device, comprising:
Receiver module, the ps business switching that the first gateway device passing through current network for receiving terminal apparatus sends please
Ask, described handover request is that described terminal unit is determining there is to be switched ps business and cs business and satisfaction switching simultaneously
Send after condition, described handover request includes opposite end business in the contextual information of described ps business and described cs business and leads to
The identification information of the first network element of letter side's ownership, described gateway device and described first gateway device are ps gateway device；
Processing module, for according to described contextual information and described identification information, described ps business and cs business being cut
Shift in objective network.
Method for switching network, terminal unit and gateway device that the present invention provides, terminal unit is determining there is ps simultaneously
Business and cs business and after meeting switching condition, by obtaining the first network element of opposite end service communication side ownership in cs business
Identification information, and this identification information is added in the ps business handover request of the ps gateway device being sent to current network,
Make a ps gateway device on the basis of receiving the ps business handover request corresponding with the type of service that it is processed, also
Receive cs business opposite end service communication side ownership the first network element identification information, thus only pass through a ps gateway device with
The handover request of ps business and cs business can be sent by the once communication connection of the 2nd ps gateway device of objective network simultaneously
To the 2nd ps gateway device, so that the 2nd ps gateway device can be ps business and cs traffic assignments Internet resources simultaneously, letter significantly
Change the complex interaction process of current network and relevant interface in objective network.
Brief description
Fig. 1 is the flow chart of inventive network changing method embodiment one；
Fig. 2 is the flow chart of another method for switching network embodiment one of the present invention；
Fig. 3 is the schematic diagram of terminal unit embodiment one of the present invention；
Fig. 4 is the schematic diagram of gateway device embodiment one of the present invention.
Specific embodiment
Fig. 1 is the flow chart of inventive network changing method embodiment one, as shown in figure 1, the network that the present embodiment provides
Changing method is applied to the scene of different system switching, is particularly suited for the system from supporting the service of ps domain to service with cs domain and is switched to
Support the situation of ps domain system, such as 3g network supports that terminal unit carries out ps business and cs business simultaneously, and lte network only props up
Hold the service of ps domain, it is possible to use the method that the present embodiment provides is simultaneously by ongoing for 3g network-termination device ps business and cs
Business switches in lte network.The executive agent of the present embodiment is terminal unit, such as smart phone.The method includes:
Step 101, terminal unit determine whether there is to be switched packet domain ps business and circuit in current network simultaneously
Domain cs business, if existing, execution step 102, otherwise terminates；
Step 102, described terminal unit determine whether to meet switching condition, if meeting, execution step 103, otherwise tie
Bundle；
In the present embodiment, only when terminal unit determines that it has ps business and cs business simultaneously, just triggering switching bar
The judge process of part.And if only ps business or cs business are being carried out, it is possible to use existing changing method is by ps business
Or cs business is from current 3g network switching to target lte network.Wherein, ps business refers to carry out using grouping exchange method
The business of data transfer, for example, can be web page browsing etc., and cs business refers to carry out data transmission using circuit switching method
Business, typically voice calling service.
Specifically, terminal unit can by detect the service identification in the packet of its ongoing applied business Lai
Determine whether there is ps business and cs business simultaneously.In the presence of determining simultaneously, whether triggering switching condition meets really
Fixed.Specifically, if the signal intensity that terminal unit detects target lte network is more than the first preset value, and carry out simultaneously
The service quality of the ps business in ps business and cs business is less than the second preset value, then this terminal unit determines satisfaction switching bar
Part.In the present embodiment, the service quality of ps business can be for example the transfer rate of ps business, when transfer rate is less than preset value
When explanation current network in ps business service quality poor.And the determination process of target lte network is prior art, no longer superfluous
State.
Step 103, described terminal unit obtain the mark of the first network element of opposite end service communication side ownership in described cs business
Knowledge information；
Step 104, described terminal unit pass through the second gateway to objective network for the first gateway device in current network
Equipment sends ps business handover request, and described handover request includes contextual information and the described mark letter of described ps business
Breath, so that described second gateway device is according to described contextual information and described identification information, by described ps business and cs business
Switch in objective network, described first gateway device and described second gateway device are ps gateway device.
In the present embodiment, because target lte network is ps domain network, will simultaneously in order to realize terminal unit in current network
The ps business carrying out and cs business switch to target lte network simultaneously, are first therefore by the ps gateway device in current network
Ps gateway device in gateway device and target lte network is the second gateway device to carry out ps business and cs business to target
The handoff process of lte network.Wherein, the ps gateway device in current network, that is, the first gateway device can be for example
Gprs serving GPRS support node (serving gprs support node, hereinafter referred to as sgsn), the ps net in target lte network
Pass equipment can be for example Mobility Management Entity (mobile management entity, hereinafter referred to as mme), gateway
(serving gateway, hereinafter referred to as sgw).
Because the first gateway device is ps gateway device, that is, the first gateway device is used for the access of ps business, transmission etc.
Reason, and cs business should be processed by corresponding processing net element, such as mobile switching centre (mobile switching
Center, hereinafter referred to as msc).Now so that the first gateway device can process the switching of ps business and cs business simultaneously,
Terminal unit needs to obtain the identification information of the first network element of opposite end service communication side ownership in cs business first, and this is identified
Information is added in ps business handover request, so that both having contained ps industry in the ps business handover request of the first gateway device reception
The contextual information of the business purpose communication network element containing cs business again, i.e. the identification information of described first network element, so that the
When this handover request is sent to the second gateway device of target lte network by one gateway device, the second gateway device can be known
There is ps business and the handover request of cs business, respectively both traffic assignments Internet resources simultaneously, finally make this two
Business switches in target lte network.Wherein, described first network element is the network element of the opposite end service communication side ownership of cs business,
This network element can be for example msc, base station etc., and correspondingly, the identification information of the first network element is, for example, the identification information of msc, base station
Identification code etc.；Described ps business contexts information is the control information of ps business, for example, include source address, destination address, service
Prescription etc..
Specifically, terminal unit can obtain the identification information of this first network element in the following manner: terminal unit is to returning
Belong to second network element send obtain described first network element identification information acquisition request so that described second network element by with institute
State the communication link having built up between the first network element to interact with described first network element, obtain described identification information and be sent to described
Terminal unit；Terminal unit receives the described identification information that described second network element sends.Terminal unit ownership in the present embodiment
The second network element belong to for terminal unit, for processing the network element of its ongoing cs business, can be such as msc.Value
Must illustrate, in the present embodiment, if the opposite end service communication side of terminal unit and cs business is in the administration model of same msc
In enclosing, then the first network element and the second network element are same network element, i.e. this msc；If terminal unit and the opposite end business of cs business
Not in the compass of competency of same msc, then the first network element and the second network element are different network elements to communication party, and that is, the first network element is eventually
The msc1 of end equipment ownership, the second network element is the msc2 of opposite end service communication side ownership.Different with the first network element and the second network element
As a example, because terminal unit is currently carrying out cs business, therefore, between the first network element and the second network element, there is communication link,
And in general, the second network element, after setting up the communication link with the first network element, does not preserve the identification information of the first network element,
Therefore, terminal unit to ownership second network element send obtain the first network element ID information acquisition request after, the second network element
This acquisition is forwarded to ask by the communication link having built up to the first network element, and itself mark that the first network element receiving is sent
Knowledge information is sent to terminal unit, thus terminal unit receives the described identification information that the second network element sends.
In the present embodiment, terminal unit, after determination has ps business and cs business simultaneously and meets switching condition, leads to
Cross the identification information obtaining the first network element of opposite end service communication side ownership in cs business, and the interpolation of this identification information is sent to
So that a ps gateway device is processed with it in reception in the ps business handover request of the first ps gateway device of current network
The corresponding ps business handover request of type of service on the basis of, also receive opposite end service communication side ownership in cs business
The identification information of the first network element, thus only pass through once leading to of a ps gateway device and the 2nd ps gateway device of objective network
The handover request of ps business and cs business can be sent to the 2nd ps gateway device, so that the 2nd ps gateway sets by letter connection simultaneously
Standby can be ps business and cs traffic assignments Internet resources simultaneously, enormously simplify current network and relevant interface in objective network
Complex interaction process.
Fig. 2 is the flow chart of another method for switching network embodiment one of the present invention, and the method includes:
Step 201, the second gateway device receiving terminal apparatus of objective network pass through the first gateway device of current network
The ps business handover request sending, described handover request be described terminal unit determine exist simultaneously to be switched ps business and
Cs business and send after meeting switching condition, described handover request includes the contextual information of described ps business and described
Identification information, described first gateway device and described second gateway of the first network element of opposite end service communication side ownership in cs business
Equipment is ps gateway device；
Step 202, described second gateway device according to described contextual information and described identification information, by described ps business
Switch in objective network with cs business.
In the present embodiment, the second gateway device in target lte network is receiving terminal unit by current network
What the first gateway device sent carries the first net of opposite end service communication side ownership in ps business contexts information and cs business
After the identification information of unit, according to described contextual information and described identification information, described ps business and cs business are switched to mesh
In mark network.
Specifically, the second gateway device is according to described contextual information and described identification information, by described ps business and cs
Business switches in objective network, comprising:
Second gateway device is described ps traffic assignments first network resource according to described contextual information, with using described
Ps business described in first network resource transmission, and the communication connection with described first network element is set up according to described identification information, and
For described cs traffic assignments second Internet resources, with using cs business described in described second network resource transmission.
In the present embodiment, the second gateway device is ps traffic assignments Internet resources according to ps business contexts information, for example
Transmission bandwidth, frequency spectrum resource etc., and carry out ps business to the transmission of its purpose communication party using the Internet resources distributing；With
When, because cs business is circuit domain business, conversed in both call sides, you can before being interpreted as carrying out data transmission, needed
First set up the communication connection with purpose communication party, therefore, the second gateway device, according to the identification information of described first network element, is set up
With the communication connection of the first network element, and then it is cs traffic assignments Internet resources, such as transfer rate etc., and using the net distributing
Network resource transmission cs business.
In the present embodiment, the second gateway device is right in receiving the contextual information containing ps business and described cs business
After the ps business handover request of the identification information of the first network element of end service communication side ownership, according to described contextual information and institute
State identification information, described ps business and cs business are switched in objective network.Because this handover request is only to be set by terminal
That a ps gateway device in standby current network sends it is ensured that the switching of cs business and the switching of ps business all ask with
One second gateway device, simplifies the complexity needing to interact in prior art between multiple network element interfaces.
Fig. 3 is the schematic diagram of terminal unit embodiment one of the present invention, as shown in figure 3, this equipment includes:
First determining module 11, for determining whether there is to be switched packet domain ps business and electricity in current network simultaneously
Road domain cs business；
Second determining module 12, is used to determine whether to meet switching condition；
Acquisition module 13, for obtaining the mark letter of the first network element of opposite end service communication side ownership in described cs business
Breath；
Sending module 14, for being sent out to the second gateway device of objective network by the first gateway device in current network
Send ps business handover request, described handover request includes the contextual information of described ps business and described identification information, so that
Described second gateway device, according to described contextual information and described identification information, described ps business and cs business is switched to mesh
In mark network, described first gateway device and described second gateway device are ps gateway device.
Further, described acquisition module 13, comprising:
Transmitting element 131, for sending the acquisition of the identification information obtaining described first network element to the second network element of ownership
Request so that described second network element by described first network element between the communication link that has built up hand over described first network element
Mutually, obtain described identification information and be sent to described terminal unit；
Receiving unit 132, for receiving the described identification information that described second network element sends.
Further, described second determining module 12, specifically for:
If the signal intensity that described terminal unit detects described objective network is more than the first preset value, and described ps business
Service quality be less than the second preset value, then described terminal unit determines and meets switching condition.
The equipment of the present embodiment can be used for executing the technical scheme of embodiment of the method shown in Fig. 1, and it realizes principle and skill
Art effect is similar to, and here is omitted.
Fig. 4 is the schematic diagram of gateway device embodiment one of the present invention, as shown in figure 4, this equipment includes:
Receiver module 21, the ps business switching that the first gateway device passing through current network for receiving terminal apparatus sends
Request, described handover request is that described terminal unit has to be switched ps business and cs business in determination simultaneously and satisfaction is cut
Change and send after condition, described handover request includes opposite end business in the contextual information of described ps business and described cs business
The identification information of the first network element of communication party's ownership, described gateway device and described first gateway device are ps gateway device；
Processing module 22, for according to described contextual information and described identification information, by described ps business and cs business
Switch in objective network.
Further, described processing module 22, specifically for:
It is described ps traffic assignments first network resource according to described contextual information, with using described first network resource
Transmit described ps business, and the communication connection with described first network element is set up according to described identification information, and be described cs business
Distribute the second Internet resources, with using cs business described in described second network resource transmission.
The equipment of the present embodiment can be used for executing the technical scheme of embodiment of the method shown in Fig. 2, and it realizes principle and skill
Art effect is similar to, and here is omitted.
One of ordinary skill in the art will appreciate that: all or part of step realizing said method embodiment can be passed through
Completing, aforesaid program can be stored in a computer read/write memory medium the related hardware of programmed instruction, this program
Upon execution, execute the step including said method embodiment；And aforesaid storage medium includes: rom, ram, magnetic disc or light
Disk etc. is various can be with the medium of store program codes.
Finally it is noted that various embodiments above, only in order to technical scheme to be described, is not intended to limit；To the greatest extent
Pipe has been described in detail to the present invention with reference to foregoing embodiments, it will be understood by those within the art that: its according to
So the technical scheme described in foregoing embodiments can be modified, or wherein some or all of technical characteristic is entered
Row equivalent；And these modifications or replacement, do not make the essence of appropriate technical solution depart from various embodiments of the present invention technology
The scope of scheme.
Claims (8)
1. a kind of method for switching network is it is characterised in that include:
Terminal unit determines whether there is to be switched packet domain ps business and circuit domain cs business in current network simultaneously；
If existing, described terminal unit determines whether to meet switching condition；
If meeting, described terminal unit obtains the mark letter of the first network element of opposite end service communication side ownership in described cs business
Breath；
The first gateway device that described terminal unit passes through in current network sends ps industry to the second gateway device of objective network
Business handover request, described handover request includes the contextual information of described ps business and described identification information, so that described the
Two gateway devices, according to described contextual information and described identification information, described ps business and cs business are switched to objective network
In, described first gateway device and described second gateway device are ps gateway device；
Described terminal unit determines whether to meet switching condition, comprising:
If the signal intensity that described terminal unit detects described objective network is more than the first preset value, and the clothes of described ps business
Business quality is less than the second preset value, then described terminal unit determination meets switching condition.
2. method according to claim 1 is it is characterised in that described terminal unit obtains opposite end business in described cs business
The identification information of the first network element of communication party's ownership, comprising:
Described terminal unit sends the acquisition request of the identification information obtaining described first network element to the second network element of ownership, so that
Described second network element is interacted with described first network element by the communication link being had built up between described first network element, obtains described
Identification information is simultaneously sent to described terminal unit；
Described terminal unit receives the described identification information that described second network element sends.
3. a kind of method for switching network is it is characterised in that include:
Second gateway device receiving terminal apparatus of objective network pass through the ps business that the first gateway device of current network sends
Handover request, described handover request is that described terminal unit is determining there is to be switched ps business and cs business and institute simultaneously
State terminal unit and the signal intensity of described objective network is detected more than the first preset value, and the service quality of described ps business is little
Send after the second preset value, described handover request includes right in the contextual information of described ps business and described cs business
The identification information of the first network element of end service communication side ownership, described first gateway device and described second gateway device are ps
Gateway device；
Described second gateway device, according to described contextual information and described identification information, described ps business and cs business is switched
To objective network.
4. method according to claim 3 it is characterised in that described second gateway device according to described contextual information and
Described identification information, described ps business and cs business are switched in objective network, comprising:
Described second gateway device is described ps traffic assignments first network resource according to described contextual information, with using described
Ps business described in first network resource transmission, and the communication connection with described first network element is set up according to described identification information, and
For described cs traffic assignments second Internet resources, with using cs business described in described second network resource transmission.
5. a kind of terminal unit is it is characterised in that include:
First determining module, for determining whether there is to be switched packet domain ps business and circuit domain cs in current network simultaneously
Business；
Second determining module, is used to determine whether to meet switching condition；
Acquisition module, for obtaining the identification information of the first network element of opposite end service communication side ownership in described cs business；
Sending module, for sending ps industry by the first gateway device in current network to the second gateway device of objective network
Business handover request, described handover request includes the contextual information of described ps business and described identification information, so that described the
Two gateway devices, according to described contextual information and described identification information, described ps business and cs business are switched to objective network
In, described first gateway device and described second gateway device are ps gateway device；
Described second determining module, specifically for:
If the signal intensity that described terminal unit detects described objective network is more than the first preset value, and the clothes of described ps business
Business quality is less than the second preset value, then described terminal unit determination meets switching condition.
6. equipment according to claim 5 is it is characterised in that described acquisition module, comprising:
Transmitting element, for sending the acquisition request of the identification information obtaining described first network element to the second network element of ownership, with
So that described second network element is interacted with described first network element by the communication link having built up between described first network element, obtain institute
State identification information and be sent to described terminal unit；
Receiving unit, for receiving the described identification information that described second network element sends.
7. a kind of gateway device is it is characterised in that include:
Receiver module, the ps business handover request that the first gateway device passing through current network for receiving terminal apparatus sends,
Described handover request is that described terminal unit has to be switched ps business and cs business in determination simultaneously and described terminal sets
Standby signal intensity objective network is detected is more than the first preset value, and the service quality of described ps business is less than the second preset value
Send afterwards, described handover request includes opposite end service communication side in the contextual information of described ps business and described cs business
The identification information of the first network element of ownership, described gateway device and described first gateway device are ps gateway device；
Processing module, for according to described contextual information and described identification information, described ps business and cs business being switched to
In objective network.
8. equipment according to claim 7 is it is characterised in that described processing module, specifically for:
It is described ps traffic assignments first network resource according to described contextual information, with using described first network resource transmission
Described ps business, and the communication connection with described first network element is set up according to described identification information, and be described cs traffic assignments
Second Internet resources, with using cs business described in described second network resource transmission.
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| CN201310683032.1A CN103686906B (en) | 2013-12-12 | 2013-12-12 | Method for switching network, terminal equipment and gateway equipment |
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| CN104486193B (en) * | 2014-12-11 | 2017-11-24 | 华为技术有限公司 | A kind of method and device for establishing network node interconnection |
| CN107889180B (en) * | 2016-09-30 | 2020-09-08 | 华为技术有限公司 | Method, terminal and network side equipment for reselecting inter-system cell |
| TWI625979B (en) * | 2016-12-08 | 2018-06-01 | 財團法人工業技術研究院 | Hand over method, system and user equipment |
| CN112385268B (en) * | 2018-09-04 | 2023-08-25 | Oppo广东移动通信有限公司 | Service identifier display control method and related product |
| CN113747422B (en) * | 2020-05-27 | 2024-02-02 | 中国联合网络通信集团有限公司 | Network service switching method, device, equipment and storage medium |
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| CN103313334A (en) * | 2012-03-16 | 2013-09-18 | 中国移动通信集团广东有限公司 | Wireless communication method and base station controller |
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| CN102932833B (en) * | 2011-08-10 | 2016-05-25 | 华为技术有限公司 | A kind of network method for handover control, communication system and relevant device |
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| CN1984487A (en) * | 2006-06-02 | 2007-06-20 | 华为技术有限公司 | Method and system for switching double-transmission mode in mobile telecommunication network |
| CN101466122A (en) * | 2007-12-18 | 2009-06-24 | 华为技术有限公司 | Method, system and device for switching to developmental packet system network |
| CN103313334A (en) * | 2012-03-16 | 2013-09-18 | 中国移动通信集团广东有限公司 | Wireless communication method and base station controller |
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