CN104396309B - Communication means, support node and communication system - Google Patents
Communication means, support node and communication system Download PDFInfo
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- CN104396309B CN104396309B CN201380001994.2A CN201380001994A CN104396309B CN 104396309 B CN104396309 B CN 104396309B CN 201380001994 A CN201380001994 A CN 201380001994A CN 104396309 B CN104396309 B CN 104396309B
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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
- H04W40/22—Communication route or path selection, e.g. power-based or shortest path routing using selective relaying for reaching a BTS [Base Transceiver Station] or an access point
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L45/00—Routing or path finding of packets in data switching networks
- H04L45/22—Alternate routing
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Abstract
The embodiment of the present invention provides a kind of communication means, support node and communication system.The IP address that the embodiment of the present invention passes through the support node of acquisition UE, the support node of UE is addressed in a local network, the message for the UE that base station is sent is forwarded to UE by the support node of UE, or directly acquire the IP address of UE in a local network, UE is addressed in a local network according to the IP address of UE, it can be accurately in the heterogeneous network that local area network and wireless cellular network are constituted, the message for the UE that base station is sent accurately is forwarded to UE, realizes the UE addressing in the heterogeneous network that local area network and wireless cellular network are constituted.Technical solution based on the embodiment of the present invention to replace the short range wireless transmission between support node in the prior art by the wire transmission of cable LAN, makes the communication between support node relatively reliable, communications cost reduces.
Description
Technical field
The present invention relates to the communication technology more particularly to a kind of communication means, support node and communication system.
Background technique
With the rapid development of mobile communication technology, the mobile communication system of multiple types has been had already appeared, for example, global
Mobile communcations system (GSM:Global System of Mobile communication) network, general packet radio service
Technology (GPRS:General Packet Radio Service) network, wideband code division multiple access (WCDMA:Wideband Code
Division Multiple Access) network, CDMA-2000 network, TD SDMA (TD-SCDMA:Time
Division-Synchronous Code Division Multiple Access) network, worldwide interoperability for microwave accesses
(WiMAX:Worldwide Interoperability for Microwave Access) network etc..These mobile communication systems
System usually also provides data communication service other than providing voice communication service, and therefore, it is logical that these movements can be used in user
Data communication service provided by letter system uploads and downloads various data.
However, what current means of communication was operated both for single-user equipment, i.e. evolved base station (evolved
Node B, abbreviation eNB) directly the progress data of the user equipment (User Equipment, abbreviation UE) in range are managed with it
Interaction.Even if using other enhanced means of communication, such as coordinated multipoint transmission (CoMP:Coordinated Multipoint)
Technology improves reliability in Cell Edge User equipment or carrier wave polymerization (CA:Carrier Aggregation) technology
The throughput etc. of user equipment is improved, these technologies are still all the operations to single-user equipment, once where user equipment
Cell environment deteriorates, and the throughput and/or reliability of the data transmission of user equipment also can sharply decline.
To solve the above-mentioned problems, synthesis communication (Multiple Users Cooperative Communication,
MUCC concept) is suggested.As shown in Figure 1, eNB1 configures UE2 and UE3 and establishes synthesis communication connection under synthesis communication,
The data that eNB1 is sent to UE3 can first be sent to the UE2 that synthesis communication connection is established with UE3 near UE3, and UE2 passes through short
Distance communication technology is by the data forwarding to UE3.The UE that it is good that eNB in this way may be selected by channel condition issues the number of target UE
According to achieving the effect that multi-user diversity.Wherein, UE2 and UE3 establishes synthesis communication connection, and UE2 can be known as to the support of UE3
The super E5 of node or UE3, the UE2 can be a kind of support UE for providing exclusively for UE3 and forwarding service, be also possible to general
Logical UE.
The design of synthesis communication protocol stack as shown in Figure 2, be for synthesizing layer between rlc layer and PDCP layers,
Actually synthesis layer position can there are many selections.From figure 2 it can be seen that eNB needs the data for carrying UE3, shunt
Onto the protocol stack of UE2, then by short-distance transmission to UE3.The protocol stack parameter of UE2 is identical with UE3.Synthesis communication protocol stack draws
Synthesis layer is entered, synthesis layer provides data distribution and merges, channel quality monitoring, carries mapping etc. function.
Can be seen that synthesis communication (MUCC) from above-mentioned introduction can bring multi-user diversity, the chain but the macro net of UE is eated dishes without rice or wine
Road expense, such as channel quality indicator CQI can not save, while also will increase complexity, the power consumption of UE that UE works and also can
Increase.These problems are especially prominent in small data transmission, so the characteristics of being directed to small data transmission, MUCC spreads out again have been stretched out separately
A kind of form, as shown in figure 3, all data pass through support node (in such as Fig. 3 there is no direct communication between eNB and UE3
Support node 21 and support node 22) forwarding.Also synthesis communication connection is established between each support node, further to promote nothing
The reliability and efficiency of transmission of line back haul link (Backhaul).By the MUCC of form shown in Fig. 3, by MUCC bring terminal
The problems such as work complexity and power consumption increase all has imputed to support node, and has liberated most of UE.
And in existing communication system, the communication between each support node is still using wireless communication.And with last public affairs
In the construction of optical fiber/broadband network, wired network interface is around us, especially some hot zones, such as quotient
Field, office building etc..How communication means still without wired lan in conjunction with radio honeycomb Network Communication at present sends base station
The data of terminal can be forwarded in wireless cellular network and accurately the terminal in cable network, be that the present invention needs to solve
The problem of.
Summary of the invention
The present invention provides a kind of communication means, support node and communication systems, to realize in wireless cellular network and have
In gauze network, the data for the terminal that base station is sent accurately are forwarded to the terminal.
First aspect of the present invention is to provide a kind of communication means, comprising:
Obtain the IP address of the support node of user equipment (UE) in a local network；
If the IP address is not itself IP address in a local network, according to the IP address, in a local network will
The message for the UE that the base station that receives is sent routes to the support node of the UE, so that the support node of the UE is by institute
It states message and is forwarded to the UE.
In conjunction with the first aspect of communication means, in the first possible implementation, the support node for obtaining UE
IP address in a local network, comprising:
The message for the UE that the base station is sent is received, the message carries the mark of UE；
According to the mark, the IP address of the support node of the UE in a local network is obtained.
It is described according in second of possible implementation in conjunction with the first possible implementation of communication means
UE mark, obtains the IP address of the support node of the UE in a local network, comprising:
Query routing list, be stored in the route list support node IP address and with the support node IP
The mark of the UE of address binding；
From the route list, the IP address that the UE identifies corresponding support node is obtained.
One of first invention or first and second kinds of possible implementations in conjunction with communication means, at the third
In possible implementation, further includes:
After establishing synthesis communication connection with terminal, the mark of the terminal is obtained, by the mark of the terminal and itself
IP address binding in a local network, and be stored in the route list of itself, broadcast carries described in the local area network
First update instruction information of the mark of terminal and itself IP address in a local network, the first update instruction information are used
The terminal is identified into the road for being stored in the support node corresponding with the IP address in the support node that instruction receives
By in list；
After releasing synthesis communication connection with terminal, obtain the mark of the terminal, release the mark of the terminal with from
The binding of the IP address of body in a local network, and the mark of the terminal is deleted from itself the route list, in institute
It states in local area network broadcast and carries the mark of the terminal and the second update instruction letter of itself IP address in a local network
Breath, the second update instruction information are used to indicate the support node received and deposit corresponding with the IP address in route list
The mark of the terminal of storage is deleted.
In conjunction with the first aspect of communication means, in the 4th kind of possible implementation, the support node for obtaining UE
IP address in a local network, comprising:
The message for the UE that base station is sent is received, the message carries the mark of UE and the support node of the UE in office
IP address in the net of domain, wherein the IP address is that the support node and the UE are established after synthesizing communication connection, by described
Support node reports to the base station；
According to the message, the IP address of the support node of the UE in a local network is obtained.
The second aspect of the present invention provides a kind of communication means, comprising:
The message for the UE that base station is sent is received, the message carries the IP address of UE；
According to the IP address of the UE, the message is routed into the UE in a local network；
Wherein, the IP address of the UE is institute for the support node for establishing synthesis communication connection with the UE in a local network
UE application or distribution are stated, and the base station is reported to by the support node.
In conjunction with the second aspect of communication means, in the first possible implementation, further includes:
After establishing synthesis communication connection with terminal, the dynamic host configuration protocol DHCP server into local area network is sent
The address acquisition request of the terminal iidentification is carried, so that the Dynamic Host Configuration Protocol server is the terminal distribution IP address；
After releasing synthesis communication connection with terminal, Xiang Suoshu Dynamic Host Configuration Protocol server sends the IP address for carrying the terminal
Address discharge request so that the Dynamic Host Configuration Protocol server discharges the IP address of the terminal.
Third aspect of the present invention provides a kind of support node, comprising:
Module is obtained, for obtaining the IP address of the support node of UE in a local network；
First processing module, for when the IP address is not itself IP address in a local network, according to the IP
The message that base station is sent to the UE is routed to the support node of the UE by address in a local network, so that the branch of the UE
It supports node and the message is forwarded to the UE.
In terms of third in conjunction with support node, in the first possible implementation, the acquisition module, comprising:
Receiving unit, for receiving the message for the UE that the base station is sent, the message carries the mark of UE；
Acquiring unit, for obtaining the IP address of the support node of the UE in a local network according to the mark.
In the first possible implementation in conjunction with support node, in second of possible implementation, the acquisition is single
Member, comprising:
Subelement is inquired, query routing list is used for, UE mark and corresponding support are stored in the route list
The IP address of node；
Subelement is obtained, for obtaining the IP address that the UE identifies corresponding support node from the route list.
In conjunction with the third aspect of support node or one of the first and second of possible implementation, at three kinds
In possible implementation, further includes:
Second processing module will be described for obtaining the mark of the terminal after establishing synthesis communication connection with terminal
The mark of terminal is bound with itself IP address in a local network, and is stored in the route list of itself, in the local area network
Middle the first update instruction information for broadcasting the mark for carrying the terminal and itself IP address in a local network, described the
One update instruction information is used to indicate the support node that receives and is stored in the mark of the terminal is corresponding with the IP address
In the route list of the support node；
Third processing module releases institute for obtaining the mark of the terminal after releasing synthesis communication connection with terminal
State the binding of the mark and itself IP address in a local network of terminal, and by the mark of the terminal from itself the routing
It is deleted in list, broadcast carries the mark and itself IP address in a local network of the terminal in the local area network
Second update instruction information, the second update instruction information be used to indicate the support node that receives by route list with institute
The mark for stating the terminal of the corresponding storage of IP address is deleted.
In terms of third in conjunction with support node, in the 4th kind of mode in the cards, the acquisition module, comprising:
Receiving unit, for receive base station transmission UE message, the message carry UE mark and the UE
Support node IP address in a local network, wherein the IP address be the support node and the UE to establish synthesis logical
After letter connection, the base station is reported to by the support node；
Acquiring unit, for obtaining the IP address of the support node of the UE in a local network according to the message.
The 4th aspect of the present invention provides a kind of support node, comprising:
Receiving module, the message of the UE for receiving base station transmission, the message carry the IP address of UE；
The message is routed to the UE in a local network for the IP address according to the UE by processing module；
Wherein, the IP address of the UE is institute for the support node for establishing synthesis communication connection with the UE in a local network
UE application or distribution are stated, and the base station is reported to by the support node.
In conjunction with the 4th aspect of support node, in the first possible implementation, further includes:
Sending module, for dynamic host configuration protocol after establishing synthesis communication connection with terminal, into local area network
Dynamic Host Configuration Protocol server sends the address acquisition request for carrying the terminal iidentification, so that the Dynamic Host Configuration Protocol server is the terminal point
With IP address；After releasing synthesis communication connection with terminal, Xiang Suoshu Dynamic Host Configuration Protocol server is with sending the IP for carrying the terminal
The address of location discharges request, so that the Dynamic Host Configuration Protocol server discharges the IP address of the terminal.
The 5th aspect of the present invention provides a kind of communication system, comprising: base station, user equipment (UE) and at least two supports
Node；Wherein,
The base station wirelessly communicates at least two support node connect respectively, for sending out the message of the UE
Send a support node at least two support node；
A support node in the UE and at least two support node is synthesis communication connection；
At least two support node is in same local area network；
The support node is used to obtain the IP address of the support node of user equipment (UE) in a local network；
If the IP address is not itself IP address in a local network, according to the IP address, in a local network will
The message for the UE that the base station that receives is sent routes to the support node of the UE, so that the support node of the UE is by institute
It states message and is forwarded to the UE, or receive the message for the UE that base station is sent, the message carries the mark of UE and described
The IP address of the support node of UE in a local network, wherein the IP address is that the support node and the UE are established and synthesized
After communication connection, the base station is reported to by the support node；According to the message, the support node for obtaining the UE exists
IP address in local area network.
The 6th aspect of the present invention provides a kind of support node, and the support node includes: processor, communication interface, deposits
Reservoir and bus；Wherein,
The processor, the communication interface, the memory complete mutual communication by the bus；
The processor, for executing program；
The memory, for storing described program；
Wherein, described program is used to obtain the IP address of the support node of user equipment (UE) in a local network；If the IP
Address is not itself IP address in a local network, then according to the IP address, in a local network sends the base station received
The message of the UE route to the support node of the UE so that the support node of the UE message is forwarded to it is described
UE。
As shown from the above technical solution, the embodiment of the present invention passes through the IP address for obtaining the support node of UE, in local area network
The support node of middle addressing UE, is forwarded to UE for the message for the UE that base station is sent by the support node of UE, or directly acquire UE
IP address in a local network addresses UE according to the IP address of UE in a local network, can be accurately in local area network and wireless bee
In the heterogeneous network that nest network is constituted, the message of UE that base station is sent accurately is forwarded to UE, realizes local area network and wireless
UE addressing in the heterogeneous network that cellular network is constituted.Technical solution based on the embodiment of the present invention, so that by wired
The wire transmission of local area network replaces the short range wireless transmission between support node to be in the prior art possibly realized, and allows support node
Between communication it is relatively reliable, communications cost reduce.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of the communication system in the prior art based on MUCC technology；
Fig. 2 is the protocol stack schematic diagram of communication system shown in FIG. 1；
Fig. 3 is the structural schematic diagram of the communication system in the prior art based on another MUCC technology；
Fig. 4 is a kind of structural schematic diagram for communication system that the embodiment of the present invention one provides；
Fig. 5 is the flow diagram of communication means provided by Embodiment 2 of the present invention；
Fig. 6 is the example schematic that renewal process was established, safeguarded to the route list of support node in the embodiment of the present invention two；
Fig. 7 is the signalling diagram for the communication means that the embodiment of the present invention three provides；
Fig. 8 is the original of the synthesis communication protocol stack for the corresponding each network element device of communication means that the embodiment of the present invention three provides
Reason figure；
Fig. 9 is the signalling diagram for the communication means that the embodiment of the present invention four provides；
Figure 10 is the synthesis communication protocol stack for the corresponding each network element device of communication means that the embodiment of the present invention four provides
Schematic diagram；
Figure 11 is the flow diagram for the communication means that the embodiment of the present invention five provides；
Figure 12 is the signalling diagram for the communication means that the embodiment of the present invention six provides；
Figure 13 is the synthesis communication protocol stack for the corresponding each network element device of communication means that the embodiment of the present invention six provides
Schematic diagram；
Figure 14 is the structural schematic diagram for the support node that the embodiment of the present invention seven provides；
Figure 15 is the structural schematic diagram for the support node that the embodiment of the present invention eight provides；
Figure 16 is the structural schematic diagram for the support node that the embodiment of the present invention nine provides.
Specific embodiment
The embodiment of the present invention is based on MUCC technology, establishes the logical of a kind of combination wired local area network and wireless cellular network
Believe that system architecture, communication system as shown in Figure 4 replace support section in the prior art by the wire transmission of cable LAN
Short range wireless transmission between point, can allow the communication between support node relatively reliable, and communications cost reduces.
As shown in figure 4, a kind of structural schematic diagram for communication system that the embodiment of the present invention one provides.As shown in figure 4, described
Communication system includes: that base station 1, user equipment (UE) 3 and at least two support nodes (illustrate only two support nodes in Fig. 4
23 and 24 the case where).Wherein, the base station 1 wirelessly communicates at least two support node connect respectively, and being used for will be described
The message of UE3 is sent to a support node at least two support node.The UE3 and at least two support
A support node in node is synthesis communication connection, as shown in figure 4, the support node 23 and the UE3 are that synthesis is logical
The support node that letter connection, i.e. support node 23 are the UE3.Pass through cable LAN between at least two support node
Connection.After the network interface of wired lan has been gone up in each support node cable connection, agreement can be set from the DynamicHost of local lan
(Dynamic Host Configuration Protocol, abbreviation DHCP) server obtains an IP address.Alternatively, described
Support node is not only that oneself is obtained outside an IP address from the Dynamic Host Configuration Protocol server of local lan, can also be to Dynamic Host Configuration Protocol server application
For one IP address of terminal distribution for the support node being contract communication connection.Specifically, example as shown in Figure 4, support
Node 23 and support node 24 are accessed in existing wired lan by wireline interface.Above-mentioned support node, for obtaining user
The IP address of the support node of equipment UE in a local network；If the IP address is not itself IP address in a local network,
According to the IP address, the message for the UE that the base station received is sent is routed to the support section of the UE in a local network
Point, so that the message is forwarded to the UE by the support node of the UE；Alternatively, the support node receives what base station was sent
The message of UE, the message carry the IP address of UE；According to the IP address of the UE, the message is routed in a local network
To the UE；Wherein, the IP address of the UE is to establish the support node that synthesis communicates to connect with the UE to be in a local network
The UE application or distribution, and the base station is reported to by the support node.
The good support node of channel condition at least one base station selected support node, the good support node of the channel condition
It may be the support node of the UE, it is also possible to other support nodes in addition to the support node of the UE.Base station is by UE
Message be first sent to the good support node of the channel condition, which obtains the IP address of the support node of UE, in office
The support node that UE is addressed in the net of domain, is forwarded to UE for the message for the UE that base station is sent by the support node of UE, or directly obtain
The IP address of UE in a local network is taken, UE is addressed according to the IP address of UE in a local network, it can be accurately in local area network and nothing
In the heterogeneous network that line cellular network is constituted, the message of UE that base station is sent accurately is forwarded to UE, realize local area network and
UE addressing in the heterogeneous network that wireless cellular network is constituted.Based on the communication means provided in this embodiment, so that by
The wire transmission of cable LAN replaces the short range wireless transmission between support node to be in the prior art possibly realized, and allows support
Communication between node is relatively reliable, and communications cost reduces.
What needs to be explained here is that support node described in the embodiment of the present invention can be in existing MUCC technology in advance
Some common UE or small-sized relay node Relay that the super E5 network side of fixed and arranged is picked out etc.
Deng.
As shown in figure 5, the flow diagram of communication means provided by Embodiment 2 of the present invention.Embodiment as shown in Figure 5
Executing subject be support node.As shown in figure 5, this method comprises:
Step 101 obtains the IP address of the support node of user equipment (UE) in a local network.
Specifically, support node can obtain an IP address from the Dynamic Host Configuration Protocol server of local lan after accessing wired lan.
This step 101 obtains the IP address of the support node of user equipment (UE) in a local network, a kind of possible implementation, comprising:
Firstly, receiving the message for the UE that the base station is sent, the message carries the mark of UE.
Wherein, the mark of the UE can be specifically Cell Radio Network Temporary Identifier/Identity, Cell-RNTI (Cell Radio Network
Temmporary Identify, abbreviation CRNTI).
Then, according to the mark, the IP address of the support node of the UE in a local network is obtained.
Specifically, each support node is stored with route list.It is stored with UE mark in route list and corresponds to
Support node IP address.Wherein, the UE mark and the IP address of corresponding support node, comprising: the IP of itself
The mark of location and the terminal bound with own IP address, and other support nodes that synthesis communicates to connect are established with itself
IP address and the respectively mark with the terminal of the IP address of these support nodes binding.When support node and a UE are established and closed
After communication connection, which can obtain the mark of the UE, by the IP in the mark and the local area network of itself of the UE
Address binding, and be stored in route list, broadcast carries the mark of the UE and from office in the local area network
First update instruction information of the IP address in the net of domain, the first update instruction information are used to indicate the support node received
The UE is identified into be stored in the respective route list of the support node corresponding with the IP address.It is released when with UE
After synthesis communication connection, the mark of the UE is obtained, releases the binding of the mark and itself IP address in a local network of the UE,
And delete the mark of the UE from itself the route list, broadcast carries the mark of the UE in the local area network
Know and the second update instruction information of itself IP address in a local network, the second update instruction information, which is used to indicate, to be connect
The support node received deletes the mark of the UE of storage corresponding with the IP address in route list.
A kind of optional embodiment of this step 1012 as a result, are as follows: query routing list is obtained from the route list
The UE is taken to identify the IP address of corresponding support node.
After the foundation of the synthesis communication connection between two support node any in system, handed between any two support node
Mutual respective IP address, and the route list of oneself is established respectively.Fig. 6 is enumerated support node route list in communication system
It establishes, the instance graph of maintenance renewal process.As shown in fig. 6, there is access after the first support node PS-UE1 is powered in communication system
Line LAN and LTE, at this time without route list, the IP address that only oneself is got from the Dynamic Host Configuration Protocol server of LAN.First
It supports node PS-UE1 to establish after synthesis communicates to connect with second, third and the 4th support node PS-UE2,3 and 4 respectively, with the
Two, the third and fourth support node PS-UE2,3 and 4 enter address exchange process, and the first support node PS-UE1 establishes road
It stores by list, and by the IP address of each support node got through address exchange process into the route list.
After second, third gradually has the benefited UE of each self-supporting with the 4th support node PS-UE2,3 and 4, respectively to the first support section
Point PS-UE1 reports the mark C-RNTI of the benefited UE of each self-supporting.For example, the first support node PS-UE1 receives the second support
The IP address for carrying the second support node and establish synthesis with the second support node PS-UE1 that node PS-UE2 is sent
The first update instruction information of the mark C-RNTI1 of the UE of communication connection, first support node are updated according to described first
Instruction information is stored in routing column for the mark C-RNTI1 is corresponding with the IP of the second support node described in route list
In table.Similarly, it in Fig. 6, stores in the route list of the first support node PS-UE1, is established with the second support node PS-UE2
The mark C-RNTI2 for synthesizing the terminal of communication connection establishes the terminal of synthesis communication connection with third support node PS-UE3
C-RNTI3, C-RNTI4 and C-RNTI5 are identified, and establishes the terminal of synthesis communication connection with the 4th support node PS-UE4
C-RNTI6 and 7 is identified, above method realization can be used, details are not described herein again.As second, third or the 4th support node PS-
When having the corresponding benefited UE of support node to leave in UE2,3 or 4, second, third or the 4th support node PS-UE2,3 or 4 are to
One support node PS-UE1 reports the mark C-RNTI of the UE left.For example, if the UE for being identified as C-RNTI2 leaves the second support
Node PS-UE2, the second support node PS-UE2 leave the mark C- of UE to reporting with it for all support nodes of compositive relation
RNTI2.First support node PS-UE1 is with receiving the IP for carrying the second support node that the second support node PS-UE2 is sent
Location and the second update instruction information for identifying C-RNTI2 that the UE that synthesis communicates to connect is released with second support node, institute
The first support node is stated according to the second update instruction information, by IP pairs of the second support node described in the route list
The mark C-RNTI2 that should be stored is deleted from the route list.Similarly, when having terminal and third support node or the 4th
Support node releases synthesis communication connection, and first support node can all receive the second of third or the transmission of the 4th support node
Update instruction information releases the terminal of synthesis communication connection with the third or the 4th support node to delete in route list
Mark.If the first support node PS-UE1 and the 4th support node PS-UE4 releases compositive relation, first support
Node PS-UE1 deletes being benefited for the IP address of the 4th support node described in itself route list and the 4th support node
The mark of UE, meanwhile, the 4th support node PS-UE4 is with deleting the IP of the first support node described in itself route list
The mark of the benefited UE of location and first support node.
Alternatively, this step 101, obtains the alternatively possible of the IP address of the support node of user equipment (UE) in a local network
Implementation, comprising:
Firstly, receiving the message for the UE that base station is sent, the message carries the mark of UE and the support section of the UE
The IP address of point in a local network, wherein the IP address is that the support node and the UE are established after synthesizing communication connection,
The base station is reported to by the support node.
Wherein, after the support node obtains itself IP address in the Dynamic Host Configuration Protocol server from LAN, the IP that will acquire
Address is reported to base station.UE and support node, which establish synthesis communication connection, to be completed under the configuration of base station, and thus base station is known
The UE and support node of all synthesis communication connections in road tracing area.For example, being stored with synthesis correspondence in the base station
List, the IP of the corresponding mark for being stored with the UE in synthesis communication connection and support node in the synthesis communication relationship list
Location.When base station sends the message of UE, directly the IP address of the mark of the UE and the support node of the UE can be carried
It in the message, is such as carried in the packet header MAC of the message, it is good that the message of the UE is sent to channel condition by the base station
Support node, the good support node of the channel condition may be the support node of the UE, it is also possible to except the branch of the UE
Support other support nodes other than node.
Then, according to the message, the IP address of the support node of the UE in a local network is obtained.
If step 102, the IP address are not itself IP address in a local network, according to the IP address, in office
The support node that the message for the UE that the base station received is sent is routed to the UE in the net of domain, so that the support of the UE
The message is forwarded to the UE by node.
Based on communication means provided in this embodiment, so that replacing the prior art by the wire transmission of cable LAN
Short range wireless transmission between middle support node is possibly realized, i.e., base station is sent to the UE of support node by local area network
Message routes to the support node of the UE, and the message is forwarded to the UE by the support node of the UE.More existing branch
Short-distance wireless communication technology between support node, the present embodiment use the transmission of cable LAN progress data between support node, can
To make the communication between support node relatively reliable, and communications cost reduces.
To make method provided in an embodiment of the present invention clearer, below will with a specific communication system as an example into
Illustrate communication means provided by the invention to one step.The communication system include UE, the first support node, the second support node,
Dynamic Host Configuration Protocol server and base station eNB.Wherein, UE and first support node are synthesis communication connection, i.e., the described first support section
Point is the support node of the UE.First support node and second support node are in same local area network, and first
Support node synthesizes communication connection with second support node.The eNB and first support node and second described
Support node communication connection.Wherein, any two support node establishes the process of synthesis communication connection in the present embodiment, and supports section
Point can be used contract in existing MUCC technology with the UE process for establishing synthesis communication connection and communicate to connect method for building up, the present invention
It is repeated no more in embodiment.The structure of communication system described in the present embodiment is not limited only to this, the communication system shown in the present embodiment
Merely to clearly illustrating the communication means provided in an embodiment of the present invention.As shown in fig. 7, what the embodiment of the present invention three provided
The signalling diagram of communication means.The method that the present embodiment three provides is applicable in the communication as shown in fig. 7, the present embodiment three
Method may include:
Step 201, the first support node and the second support node are interacted with Dynamic Host Configuration Protocol server respectively, are obtained local
The Dynamic Host Configuration Protocol server of LAN is the IP address that first support node and the second support node distribute.
Step 202, first support node and the second support node carry out information exchange, execute IP address exchange current
Journey.
Specifically, the first support node sends the IP address for carrying the first support node to second support node
Information so that second support node obtains the IP address of first support node, and stores it in route list.
Similarly, the second support node sends the information for carrying the IP address of the second support node to first support node, with
So that first support node is obtained the IP address of second support node, and stores it in route list.
Step 203, first support node bind the CRNTI of the UE and the IP address of itself, and by the UE
CRNTI be stored in route list, first support node to second support node transmission carry the UE's
First update instruction information of the IP address of CRNTI and the first support section.
Wherein, the first update instruction information is used to indicate the support node that receives for the CRNTI of the UE and institute
The IP address correspondence for stating the first support section is stored in the route list of the support node.
Step 204, the second support node are according to the first update instruction information, by the CRNTI of the UE and described the
The IP address correspondence of one support section is stored in route list.
It is assumed hereinafter that the channel condition of the second support node is better than first support node.The eNB automatically select by
The message of UE is sent to the second support node.
Step 205, eNB send the message of UE to second support node, and the message carries the UE's
CRNTI。
Step 206, second support node obtain the UE's according to the CRNTI query routing list of the UE
The IP address of the corresponding support node of CRNTI, the i.e. IP address of the first support node.
Step 207, the IP address that support node is got according in a local network route to the message described
The corresponding support node of IP address, i.e. the first support node.
The design of the synthesis communication protocol stack of the corresponding each network element device of communication means described in above-described embodiment three, such as schemes
Shown in 8, Fig. 8 be to synthesize layer for MAC sublayer (Media Access Control, abbreviation MAC) layer,
Actually synthesis layer position can there are many selections.Data flow in the protocol stack of each network element device, as shown in figure 8, eNB
The data that UE is carried are sent on the protocol stack of the second support node, and the second support node is again through cable LAN by UE
Data be transmitted to the first support node, the first support node passes through wireless short-distance again and sends the data to UE.
As shown in figure 9, the signalling diagram for the communication means that the embodiment of the present invention four provides.The institute that the present embodiment four provides
The method stated is equally based on the communication system of above structure.Specifically, as shown in figure 9, the communication means of the present embodiment four can be with
Include:
Step 301, the first support node and the second support node are interacted with Dynamic Host Configuration Protocol server respectively, are obtained local
The Dynamic Host Configuration Protocol server of LAN is the IP address that first support node and the second support node distribute.
Step 302, first support node and second support node are reported to base station from local area network respectively
In IP address.
It is assumed hereinafter that the channel condition of the second support node is better than first support node.The eNB automatically select by
The message of UE is sent to the second support node.
The message of UE is sent to second support node by step 303, base station, and the message carries the UE's
The IP address of the support node of CRNTI and the UE.
If the IP address carried in step 304, message is not the IP address of second support node, described second
Node is supportted according to the IP address, the message for the UE that the base station received is sent is routed to the UE's in a local network
Support node, i.e. the first support node, so that the message is forwarded to the UE by first support node.
The design of the synthesis communication protocol stack of the corresponding each network element device of communication means described in above-described embodiment four, such as schemes
Shown in 10, Figure 10 is to synthesize layer for MAC sublayer (Media Access Control, abbreviation MAC) layer
, actually synthesis layer position can there are many selections.Data flow in the protocol stack of each network element device, such as Figure 10 institute
Show, the data that eNB carries UE are sent on the protocol stack of the second support node.When eNB sends the data, addition
IP address is the IP address of the support node of UE.The data of UE are transmitted to the first support through cable LAN by the second support node
After node termination, the first support node passes through wireless short-range communication again and sends the data to UE.
As shown in figure 11, the flow diagram for the communication means that the embodiment of the present invention five provides.Implementation as shown in figure 11
The executing subject of example is support node.As shown in figure 11, this method comprises:
Step 401, the message for receiving the UE that base station is sent, the message carry the IP address of UE.
Wherein, the IP address of the UE is institute for the support node for establishing synthesis communication connection with the UE in a local network
UE application or distribution are stated, and the base station is reported to by the support node.
Step 402, according to the IP address of the UE, the message is routed into the UE in a local network.
Substantially, it is communicated between UE and the support node of UE or using original short range wireless transmission technology, root
According to the IP address of the UE, transmission path can be calculated in a local network.It between support node is to pass through in the transmission path
What cable LAN was communicated, and the terminal of transmission path, i.e. UE, the upper support node with transmission path terminal is to adopt
It is communicated with short range wireless transmission technology in the prior art.
Based on communication means provided in this embodiment, so that replacing the prior art by the wire transmission of cable LAN
Short range wireless transmission between middle support node is possibly realized, i.e., is that UE obtains IP address by local area network, is sent out according to base station
The message is routed directly to the UE by the IP address of the UE carried in the message of the UE sent.It is short between more existing support node
Range wireless communication technologies, the present embodiment use the transmission of cable LAN progress data between support node, support can be allowed to save
Communication between point is relatively reliable, and communications cost reduces.
Further, communication means described in above-described embodiment five further include:
After establishing synthesis communication connection with terminal, the dynamic host configuration protocol DHCP server into local area network is sent
The address acquisition request of the terminal iidentification is carried, so that the Dynamic Host Configuration Protocol server is the terminal distribution IP address；
After releasing synthesis communication connection with terminal, Xiang Suoshu Dynamic Host Configuration Protocol server sends the IP address for carrying the terminal
Address discharge request so that the Dynamic Host Configuration Protocol server discharges the IP address of the terminal.
As shown in figure 12, the signalling diagram for the communication means that the embodiment of the present invention six provides.As shown in figure 11, this method
Include:
Step 501, the first support node and the second support node are interacted with Dynamic Host Configuration Protocol server respectively, are obtained local
The Dynamic Host Configuration Protocol server of LAN is the IP address that first support node and the second support node distribute.
Step 502, first support node are the UE application/distribute IP address in a local network, by the support
The IP address of the UE is reported to the base station by node；Or the IP address is sent to the UE by the support node,
Itself IP address in a local network is reported into base station by the UE.
It is assumed hereinafter that the channel condition of the second support node is better than first support node.The eNB automatically select by
The message of UE is sent to the second support node.
The message for the UE that step 503, eNB are sent to the second support node, the message carry the IP address of the UE.
Step 504, second support node route to the message of the UE described according to the IP address of the UE
UE。
Specifically, firstly, second support node is according to the IP address of the UE, disappearing the UE in a local network
Breath routes to the first support node.Then, the message of the UE is forwarded to the UE by first support node.
The design of the synthesis communication protocol stack of the corresponding each network element device of communication means described in above-described embodiment six, such as schemes
Shown in 13, Figure 13 is for synthesizing layer in MAC layer, and actually synthesis layer position can there are many selections.It is set in each network element
Data flow in standby protocol stack, as shown in figure 13, the data that eNB carries UE are sent to the association of the second support node
It discusses on stack.When eNB sends the data, increase the IP address packet header of UE on MAC packet.Second support node is through wired local
After the data of UE are transmitted to the first support node termination by net, the first support node passes through wireless short-range communication for data again
It is sent to UE.IP layers of increase User Datagram Protocol UDP(User Datagram Protocol in the protocol stack of eNB and UE,
UDP purpose) is in order to avoid new classification occurs in the packet header IP.It is of course also possible to high-level interface type is increased newly in the packet header IP, and
Remove IP layers of increase UDP in the protocol stack of eNB and UE.
Those of ordinary skill in the art will appreciate that: realize that all or part of the steps of above method embodiment can pass through
The relevant hardware of program instruction is completed, and program above-mentioned can be stored in a computer readable storage medium, the program
When being executed, step including the steps of the foregoing method embodiments is executed；And storage medium above-mentioned includes: ROM, RAM, magnetic disk or light
The various media that can store program code such as disk.
As shown in figure 14, the structural schematic diagram for the support node that the embodiment of the present invention seven provides.As shown at 14, the support
Node includes: to obtain module 11 and first processing module 12.Wherein, the support node that the acquisition module 11 is used to obtain UE exists
IP address in local area network.The first processing module 12 is used to when the IP address not be itself IP address in a local network
When, according to the IP address, the message that base station is sent to the UE is routed to the support node of the UE in a local network, with
Make the support node of the UE that the message is forwarded to the UE.
The present embodiment addresses the support node of UE, by UE by the IP address of the support node of acquisition UE in a local network
Support node the message for the UE that base station is sent is forwarded to UE, can accurately be constituted in local area network and wireless cellular network
In heterogeneous network, the message for the UE that base station is sent accurately is forwarded to UE, local area network is realized and wireless cellular network is constituted
Heterogeneous network in UE addressing.Technical solution based on the embodiment of the present invention, so that by the wired of cable LAN
Transmission replaces the short range wireless transmission in the prior art between support node to be possibly realized, allow communication between support node more
Add reliable, communications cost reduction.
Wherein, the acquisition module includes receiving unit and acquiring unit.Wherein, the receiving unit is described for receiving
The message for the UE that base station is sent, the message carry the mark of UE.The acquiring unit is used to obtain institute according to the mark
State the IP address of the support node of UE in a local network.
Specifically, the acquiring unit includes inquiry subelement and acquisition subelement.Wherein, the inquiry subelement is used for
Query routing list is stored with the IP address of UE mark and corresponding support node in the route list.Acquisition
Unit is used for from the route list, obtains the IP address that the UE identifies corresponding support node.
Further, support node described in above-described embodiment further include: Second processing module and third processing module.
Wherein, the Second processing module is used to obtain the mark of the terminal after establishing synthesis communication connection with terminal, will be described
The mark of terminal is bound with itself IP address in a local network, and is stored in the route list of itself, in the local area network
Middle the first update instruction information for broadcasting the mark for carrying the terminal and itself IP address in a local network, described the
One update instruction information is used to indicate the support node that receives and is stored in the mark of the terminal is corresponding with the IP address
In the route list of the support node.The third processing module is used to obtain after releasing synthesis communication connection with terminal
The mark of the terminal, releases the binding of the mark and itself IP address in a local network of the terminal, and by the terminal
Mark deleted from itself the route list, in the local area network broadcast carry the terminal mark and from
Second update instruction information of the IP address of body in a local network, the second update instruction information are used to indicate the branch received
Node is supportted to delete the mark of the terminal of storage corresponding with the IP address in route list.
Alternatively, acquisition module described in above-described embodiment includes: receiving unit and acquiring unit.Wherein, the reception is single
The message of UE of the member for receiving base station transmission, the message carry the mark of UE and the support node of the UE in local
IP address in net, wherein the IP address is that the support node and the UE are established after synthesizing communication connection, by the branch
Support node reports to the base station.The acquiring unit is used to obtain the support node of the UE in office according to the message
IP address in the net of domain.
As shown in figure 15, the structural schematic diagram for the support node that the embodiment of the present invention eight provides.As shown in 15, the support
Node includes: receiving module 13 and processing module 14.Wherein, the receiving module 13 is used to receive disappearing for the UE of base station transmission
Breath, the message carry the IP address of UE.The processing module 14 is used for the IP address according to the UE, in a local network will
The message routes to the UE.Wherein, the IP address of the UE is that the support node of synthesis communication connection is established with the UE
It is in a local network the UE application or distribution, and the base station is reported to by the support node.
Further, support node described in above-described embodiment further include: sending module.The sending module be used for when with
After terminal establishes synthesis communication connection, the dynamic host configuration protocol DHCP server transmission into local area network carries the end
The address acquisition request of mark is held, so that the Dynamic Host Configuration Protocol server is the terminal distribution IP address；It is synthesized when being released with terminal
After communication connection, Xiang Suoshu Dynamic Host Configuration Protocol server sends the address release request for the IP address for carrying the terminal, so that described
Dynamic Host Configuration Protocol server discharges the IP address of the terminal.
As shown in figure 16, the structural schematic diagram for the support node that the embodiment of the present invention nine provides.As shown in figure 16, the branch
Supportting node 30 includes:
Processor (processor) 31, communication interface (Communications Interface) 32, memory
(memory) 33, bus 34.
Processor 31, communication interface 32, memory 33 complete mutual communication by bus 34.
Communication interface 32 with network element for communicating.
Processor 31, for executing program 331.
Specifically, program 331 may include program code, and said program code includes computer operation instruction.
Processor 31 may be a central processor CPU or specific integrated circuit ASIC(Application
Specific Integrated Circuit), or be arranged to implement the integrated electricity of one or more of the embodiment of the present invention
Road.
Memory 33 is for storing program 331.Memory 33 may include high speed RAM memory, it is also possible to further include non-
Volatile memory (non-volatile memory), for example, at least a magnetic disk storage.Program 331 can specifically include
One section of code, this section of code are used to obtain the IP address of the support node of user equipment (UE) in a local network；If the IP address
It is not itself IP address in a local network, then according to the IP address, in a local network by the institute of the base station received transmission
The message for stating UE routes to the support node of the UE, so that the message is forwarded to the UE by the support node of the UE；
Or the message for the UE that base station is sent is received, the message carries the IP address of UE；According to the IP address of the UE, in local
The message is routed into the UE in net；Wherein, the IP address of the UE is that the branch of synthesis communication connection is established with the UE
Support node is the UE application or distribution in a local network, and reports to the base station by the support node.
It is apparent to those skilled in the art that for convenience and simplicity of description, the system of foregoing description,
The specific work process of device and unit, can refer to corresponding processes in the foregoing method embodiment, and details are not described herein.
In several embodiments provided herein, it should be understood that disclosed systems, devices and methods, it can be with
It realizes by another way.For example, the apparatus embodiments described above are merely exemplary, for example, the unit
It divides, only a kind of logical function partition, there may be another division manner in actual implementation, such as multiple units or components
It can be combined or can be integrated into another system, or some features can be ignored or not executed.Another point, it is shown or
The mutual coupling, direct-coupling or communication connection discussed can be by some communication interfaces, between device or unit
Coupling or communication connection are connect, can be electrical property, mechanical or other forms.
The unit as illustrated by the separation member may or may not be physically separated, aobvious as unit
The component shown may or may not be physical unit, it can and it is in one place, or may be distributed over multiple
In network unit.It can select some or all of unit therein according to the actual needs to realize the mesh of this embodiment scheme
's.
It, can also be in addition, the functional units in various embodiments of the present invention may be integrated into one processing unit
It is that each unit physically exists alone, can also be integrated in one unit with two or more units.
Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Pipe present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: its according to
So be possible to modify the technical solutions described in the foregoing embodiments, or to some or all of the technical features into
Row equivalent replacement；And these are modified or replaceed, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme.
Claims (12)
1. a kind of communication means characterized by comprising
Obtain IP address of the support node of user equipment (UE) in cable LAN；
If the IP address is not from the IP address in cable LAN, according to the IP address, in cable LAN
The message of the middle UE for sending the base station received is forwarded to the UE by the support node of the UE.
2. communication means according to claim 1, which is characterized in that the support node for obtaining UE is in cable LAN
In IP address, comprising:
The message for the UE that the base station is sent is received, the message carries the mark of UE；
According to the mark, IP address of the support node of the UE in cable LAN is obtained.
3. communication means according to claim 2, which is characterized in that it is described to be identified according to the UE, obtain the UE's
IP address of the support node in cable LAN, comprising:
Query routing list, be stored in the route list support node IP address and with the support node IP address
The mark of the UE of binding；
From the route list, the IP address that the UE identifies corresponding support node is obtained.
4. any communication means according to claim 1~3, which is characterized in that further include:
After establishing synthesis communication connection with terminal, obtain the mark of the terminal, by the mark of the terminal and oneself in having
IP address binding in line local area network, and be stored in the route list of itself, it broadcasts and carries in the cable LAN
First update instruction information of the mark of the terminal and the IP address certainly in cable LAN, first update refer to
Show that information is used to indicate the support node that receives and is stored in the support for the mark of the terminal is corresponding with the IP address
In the route list of node；
After releasing synthesis communication connection with terminal, obtain the mark of the terminal, release the mark of the terminal with from
The binding of IP address in cable LAN, and the mark of the terminal is deleted from itself the route list, in institute
State in cable LAN broadcast carry the mark of the terminal and from second of the IP address in cable LAN more
New instruction information, the second update instruction information be used to indicate the support node that receives by route list with the IP
The mark of the terminal of the corresponding storage in location is deleted.
5. communication means according to claim 1, which is characterized in that the support node for obtaining UE is in cable LAN
In IP address, comprising:
The message for the UE that base station is sent is received, the message carries the mark of UE and the support node of the UE in wired office
IP address in the net of domain, wherein the IP address is that the support node and the UE are established after synthesizing communication connection, by described
Support node reports to the base station；
According to the message, IP address of the support node of the UE in cable LAN is obtained.
6. a kind of support node characterized by comprising
Module is obtained, for obtaining IP address of the support node of UE in cable LAN；
First processing module, for when the IP address is not from IP address in cable LAN, according to the IP
Address, the message that base station is sent to the UE in cable LAN are forwarded to the UE by the support node of the UE.
7. support node according to claim 6, which is characterized in that the acquisition module, comprising:
Receiving unit, for receiving the message for the UE that the base station is sent, the message carries the mark of UE；
Acquiring unit, for obtaining IP address of the support node of the UE in cable LAN according to the mark.
8. support node according to claim 7, which is characterized in that the acquiring unit, comprising:
Subelement is inquired, query routing list is used for, UE mark and corresponding support node are stored in the route list
IP address；
Subelement is obtained, for obtaining the IP address that the UE identifies corresponding support node from the route list.
9. according to the support node any in claim 6~8, which is characterized in that further include:
Second processing module, for the mark of the terminal being obtained, by the terminal after establishing synthesis communication connection with terminal
Mark bound with from the IP address in cable LAN, and be stored in the route list of itself, in wired office
Broadcast carries the mark of the terminal and the first update instruction letter from the IP address in cable LAN in the net of domain
Breath, the first update instruction information are used to indicate the support node that receives for the mark of the terminal and the IP address pair
It should be stored in the route list of the support node；
Third processing module, for obtaining the mark of the terminal, releasing the end after releasing synthesis communication connection with terminal
The mark at end with from the binding of IP address in cable LAN, and by the mark of the terminal from itself the routing
It is deleted in list, broadcast carries the mark of the terminal and from cable LAN in the cable LAN
Second update instruction information of IP address, the second update instruction information are used to indicate the support node received and arrange routing
The mark of the terminal of storage corresponding with the IP address is deleted in table.
10. support node according to claim 6, which is characterized in that the acquisition module, comprising:
Receiving unit, the message of the UE for receiving base station transmission, the message carry the mark of UE and the branch of the UE
Support IP address of the node in cable LAN, wherein the IP address is that the support node and UE foundation synthesis are logical
After letter connection, the base station is reported to by the support node；
Acquiring unit, for obtaining IP address of the support node of the UE in cable LAN according to the message.
11. a kind of communication system characterized by comprising base station, user equipment (UE) and at least two support nodes；Wherein,
The base station wirelessly communicates at least two support node connect respectively, for the message of the UE to be sent to
A support node at least two support node；
A support node in the UE and at least two support node is synthesis communication connection；
At least two support node is in same cable LAN；
At least two support node is all made of any support node in the claims 6~10.
12. a kind of support node, which is characterized in that the support node includes: processor, communication interface, memory and bus；
Wherein,
The processor, the communication interface, the memory complete mutual communication by the bus；
The processor, for executing program；
The communication interface, for being communicated with network element；
The memory, for storing described program；
Wherein, described program is used for
Obtain IP address of the support node of user equipment (UE) in cable LAN；If the IP address is not from wired
IP address in local area network, then according to the IP address, by the UE's of the base station received transmission in cable LAN
Message is forwarded to the UE by the support node of the UE.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2013/078753 WO2015000148A1 (en) | 2013-07-03 | 2013-07-03 | Communication method, support node and communication system |
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| CN104396309A CN104396309A (en) | 2015-03-04 |
| CN104396309B true CN104396309B (en) | 2019-03-26 |
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| CN116249077B (en) * | 2023-02-27 | 2023-10-20 | 北京云智软通信息技术有限公司 | Method and device for acquiring communication routing state of working group member |
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| CN101547142A (en) * | 2008-03-26 | 2009-09-30 | 华为技术有限公司 | Login method and device of connection of grouped data network |
| CN101562847A (en) * | 2008-04-18 | 2009-10-21 | 大唐移动通信设备有限公司 | Method for tracing user during switching process as well as device and system thereof |
| CN101668324A (en) * | 2008-09-04 | 2010-03-10 | 华为技术有限公司 | Routing method, routing device and routing system of relay network |
| CN102308603A (en) * | 2011-07-12 | 2012-01-04 | 华为技术有限公司 | Charge mode, network access device and core network device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101262705B (en) * | 2008-04-15 | 2011-05-11 | Ut斯达康通讯有限公司 | Method and system for connection establishment and release in roaming user session |
| JP5578580B2 (en) * | 2009-04-17 | 2014-08-27 | パナソニック インテレクチュアル プロパティ コーポレーション オブ アメリカ | Local device access management apparatus in a mobile communication system |
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2013
- 2013-07-03 CN CN201380001994.2A patent/CN104396309B/en not_active Expired - Fee Related
- 2013-07-03 WO PCT/CN2013/078753 patent/WO2015000148A1/en active Application Filing
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| CN101547142A (en) * | 2008-03-26 | 2009-09-30 | 华为技术有限公司 | Login method and device of connection of grouped data network |
| CN101562847A (en) * | 2008-04-18 | 2009-10-21 | 大唐移动通信设备有限公司 | Method for tracing user during switching process as well as device and system thereof |
| CN101668324A (en) * | 2008-09-04 | 2010-03-10 | 华为技术有限公司 | Routing method, routing device and routing system of relay network |
| CN102447545A (en) * | 2010-10-11 | 2012-05-09 | 电信科学技术研究院 | Transmission and processing method, system and device of energy-saving information |
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| WO2015000148A1 (en) | 2015-01-08 |
| CN104396309A (en) | 2015-03-04 |
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