CN105530038A - Relay device, relay server or relay method - Google Patents
Relay device, relay server or relay method Download PDFInfo
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Abstract
The invention relates to the field of communication technologies, in particular to a relay device, a relay server and a relay method, which are used for solving the problems that the implementation complexity of relay equipment is high and a donor base station needs to be transformed greatly in the prior art. The relay method provided by the embodiment of the invention comprises the steps that: an IP encapsulation and de-encapsulation module performs IP encapsulation on a data packet to be transmitted of a relay base station and then transmits the data packet to a signal transceiving module; and the signal transceiving module at a relay terminal receives the data packet after IP encapsulation and transmitted by the IP encapsulation and de-encapsulation module, then transmits the data packet after IP encapsulation to the relay server through the donor base station and first core network equipment, and the first core network equipment performs IP de-encapsulation on the data packet and then transmits the data packet to second core network equipment. An IP address of the first core network equipment and an IP address of the relay terminal belong to a same IP network segment, and an IP address of the second core network equipment and an IP address of the relay base station belong to a same IP network segment.
Description
Technical field
The present invention relates to communication technical field, particularly relate to a kind of relay, Relay Server and trunking method.
Background technology
At forth generation mobile communication (4thGeneration, in mobile radio networks before relaying (Relay) technology 4G) occurs, wireless base station device provides base station to arrive the transmission of radio network controller or core network by the Wireless microwave equipment of wire transmission or point-to-point, user terminal (UE) is generally with the communication process of wireless network: user terminal is linked into wireless base station device by interface of eating dishes without rice or wine (as Uu mouth), passback (backhaul) link that wireless base station device is provided by the microwave of wire transmission or point-to-point is linked into radio network controller place core net (CN further, coreNetwork), core net, again by the data route of user terminal or be forwarded to Yin Te (internet) network, realizes data communication process.
The deployed position of wireless base station is comparatively disperseed, in urban environment, the distance usually every hundreds of rice just needs deployment one or multiple stage wireless base station, in suburb, rural area or special screne, in the region that volume of business is less, the interval of base station can reach a few km or tens kms.Each base station needs to realize interconnecting with core net, in rural area, mountain area, overlay area, sea, even some remote point in city, the transmission equipment of the Wireless microwave of wire transmission or point-to-point is disposed in wireless base station for dispersion, faces the problems such as engineering construction difficulty is large, cost is higher.
In order to dispose the problem that engineering construction is difficult to and cost is high that wire transmission or point-to-point microwave equipment face under solving some special scenes, third generation partner program (3rdGenerationPartnershipProject, 3GPP) standardization group is woven in 4G network and introduces Relay technology, namely by the base station closed on as donor base station, the base station disposing difficulty for transmission equipment provides wireless backhaul, solves transmission problem.
The Relay framework introduced in 3GPP standardization body as shown in Figure 1.In order to realize the relay function of wireless backhaul, need exploitation relay equipment, the function (hereinafter referred to as Relay-eNB) that Relay equipment should realize base station realizes the function (Relay-UE) of user terminal again, need in wireless donor base station (DeNB) equipment to realize the relevant gateway of core net or packet data network gateway (ServiceGateway/PacketDataNetworkGateWay, and Tandem Gateway (RelayGW) function SGW/PGW), need the Mobility Management Entity (MobilemanagementEntity disposing Relay-UE at wireless device or core-network side simultaneously, MME) function.
Visible, in prior art, the implementation complexity of Relay equipment is higher, and needs to carry out larger transformation to donor base station.
Summary of the invention
The embodiment of the present invention provides a kind of relay, Relay Server and trunking method, higher in order to solve the implementation complexity of trunking in prior art, and needs the problem of donor base station being carried out to larger transformation.
A kind of relay that the embodiment of the present invention provides, comprising:
IP encapsulation and decapsulation module, after the packet to be sent of relay base station is carried out IP encapsulation, be delivered to signal transmitting and receiving module; And, for receiving the packet carried out after IP encapsulation that described signal transmitting and receiving module sends, and the packet carried out after IP encapsulation is carried out IP decapsulation;
Signal transmitting and receiving module, be arranged in link terminal, the packet carried out after IP encapsulation sent with decapsulation module is encapsulated for receiving described IP, and the packet after carrying out IP encapsulation is delivered to Relay Server by donor base station and the first equipment of the core network, send to the second equipment of the core network after carrying out IP decapsulation by described Relay Server; And, for receiving the packet carried out after IP encapsulation that described Relay Server is sent by described first equipment of the core network and described donor base station, and the packet after carrying out IP encapsulation is delivered to described IP encapsulation and decapsulation module; The IP address of described first equipment of the core network and the IP address of described link terminal belong to same IP network section, and the IP address of described second equipment of the core network and the IP address of described relay base station belong to same IP network section.
Alternatively, described IP encapsulation and decapsulation module are specifically for carrying out IP encapsulation according to following steps:
The IP protocol header of the relay base station of packet to be sent encapsulates the IP protocol header of link terminal; The first source IP address and the first object IP address is comprised in the IP protocol header of described relay base station; The second source IP address and the second object IP address is comprised in the IP protocol header of described link terminal;
Wherein, described first source IP address is the IP address of relay base station, and described first object IP address is the IP address of described second equipment of the core network; Described second source IP address is described link terminal is the local area network (LAN) subnet of ip address of relay base station distribution or the IP address of described link terminal, and described second object IP address is the IP address of described Relay Server or the IP address of described second equipment of the core network.
Alternatively, if described second source IP address is described link terminal be relay base station distribute local area network (LAN) subnet of ip address, then described signal transmitting and receiving module also for:
Before the packet after carrying out IP encapsulation is delivered to Relay Server by donor base station and the first equipment of the core network, be the IP address that local area network (LAN) subnet of ip address that relay base station is distributed replaces with described link terminal by the described link terminal in the packet after carrying out IP encapsulation.
Alternatively, if described second object IP address is the IP address of described second equipment of the core network, then described signal transmitting and receiving module also for, by the APN that configuration is corresponding with described Relay Server, indicate described second equipment of the core network that the packet after encapsulation is delivered to described Relay Server.
A kind of Relay Server that the embodiment of the present invention provides, comprising:
Signal transmitting and receiving module, for receive first equipment of the core network send from relay base station, and through the packet carried out after IP encapsulation that link terminal and donor base station send, and this is carried out the data packet transmission after IP encapsulation to IP encapsulation and decapsulation module, by Packet Generation to the second equipment of the core network carried out after IP decapsulation that described IP encapsulation is fed back with decapsulation module; And, for receiving the packet that the second equipment of the core network sends, by described data packet transmission to IP encapsulation and decapsulation module, and described IP encapsulation and decapsulation module are fed back carry out IP encapsulation after packet send to link terminal by the donor base station of described first equipment of the core network and described relay base station, be transmitted to relay base station by described link terminal; The IP address of described first equipment of the core network and the IP address of described link terminal belong to same IP network section, and the IP address of described second equipment of the core network and the IP address of described relay base station belong to same IP network section;
IP encapsulation and decapsulation module, for described signal transmitting and receiving module transfer carry out IP encapsulation after packet carry out IP decapsulation after feed back to described signal transmitting and receiving module; And described signal transmitting and receiving module is fed back to after sending to the packet of relay base station to carry out IP encapsulation to the second equipment of the core network of described signal transmitting and receiving module transfer.
Alternatively, described signal transmitting and receiving module specifically for:
After the packet after carrying out IP encapsulation is carried out IP decapsulation by described IP encapsulation and decapsulation module, preserve the mapping relations of the IP address of described relay base station after decapsulation and the IP address of described link terminal; After receiving the packet needing to send to described relay base station, according to the described mapping relations of preserving, IP encapsulation is carried out to described packet; Or,
After receiving the packet needing to send to described relay base station, by the mapping relations table of the IP address of the IP address and link terminal of searching pre-configured relay base station, IP encapsulation is carried out to described packet.
Alternatively, described IP encapsulation and decapsulation module are specifically for carrying out IP encapsulation according to following steps:
The IP protocol header of the packet from the second equipment of the core network encapsulates the IP protocol header of link terminal; Source IP address and object IP address is comprised in the IP protocol header of described link terminal; Wherein, described source IP address is the IP address of described Relay Server or the IP address of described second equipment of the core network, and described object IP address is the IP address of described link terminal.
A kind of trunking method that the embodiment of the present invention provides, comprising:
Signal transmitting and receiving module is transferred to after the packet to be sent of relay base station is carried out IP encapsulation with decapsulation module by IP encapsulation;
The signal transmitting and receiving module being positioned at link terminal receives described IP and encapsulates the packet carried out after IP encapsulation sent with decapsulation module, and the packet after carrying out IP encapsulation is delivered to Relay Server by donor base station and the first equipment of the core network, send to the second equipment of the core network after carrying out IP decapsulation by described Relay Server; The IP address of described first equipment of the core network and the IP address of described link terminal belong to same IP network section, and the IP address of described second equipment of the core network and the IP address of described relay base station belong to same IP network section.
A kind of trunking method that another embodiment of the present invention provides, comprising:
The packet that second equipment of the core network sends by Relay Server carries out IP encapsulation;
Packet after carrying out IP encapsulation is sent to link terminal by the donor base station of the first equipment of the core network and relay base station by described Relay Server, is transmitted to described relay base station by described link terminal; The IP address of described first equipment of the core network and the IP address of described link terminal belong to same IP network section, and the IP address of described second equipment of the core network and the IP address of described relay base station belong to same IP network section.
A kind of trunking method that another embodiment of the present invention provides, comprising:
The signal transmitting and receiving module being arranged in link terminal receives Relay Server after receiving the second equipment of the core network and sending to the packet of relay base station, by the packet carried out after IP encapsulation that the donor base station of the first equipment of the core network and relay base station sends, and this is carried out the Packet Generation after IP encapsulation to IP encapsulation and decapsulation module;
Packet after the described IP of carrying out encapsulation is carried out IP decapsulation with decapsulation module by described IP encapsulation; The IP address of described first equipment of the core network and the IP address of described link terminal belong to same IP network section, and the IP address of described second equipment of the core network and the IP address of described relay base station belong to same IP network section.
The embodiment of the present invention can adopt existing ordinary base station and ordinary terminal to realize the effect of relay, decrease the enforcement complexity of Relay equipment, and existing equipment of the core network (as SGW/PGW) can be utilized to carry out transfer of data, decrease the transformation to donor base station.In addition, because any ordinary terminal and ordinary base station can be combined into relay by the embodiment of the present invention, the application scenarios of expansion relays device is contributed to; Further, the relay in the embodiment of the present invention and the incidence relation that there is no between donor base station between producer, compare the situation that existing relay products must depend on the donor base station of same producer, can improve the application generality of relay.
Accompanying drawing explanation
Fig. 1 is the Relay configuration diagram introduced in 3GPP standardization body;
A kind of Relay configuration diagram that Fig. 2 provides for the embodiment of the present invention;
The relay structural representation that Fig. 3 provides for the embodiment of the present invention one;
Fig. 4 (a) is user face data flow transmission schematic flow sheet;
Fig. 4 (b) is chain of command data stream transmitting schematic flow sheet;
The data stream transmitting schematic flow sheet that Fig. 4 (c) is operation maintenance data;
Fig. 4 (d) is the data stream transmitting schematic flow sheet based on S1/X2 port transmission common data;
Fig. 5 for relay base station that the embodiment of the present invention provides be the Relay configuration diagram of the base station in 2G/3G network;
The Relay Server structural representation that Fig. 6 embodiment of the present invention two provides;
The trunking method flow chart that Fig. 7 provides for the embodiment of the present invention three;
The trunking method flow chart that Fig. 8 provides for the embodiment of the present invention four;
The trunking method flow chart that Fig. 9 provides for the embodiment of the present invention five;
The trunking method flow chart that Figure 10 provides for the embodiment of the present invention six.
Embodiment
In the embodiment of the present invention, adopt ordinary base station (as relay base station) and ordinary terminal (as link terminal) build relay, link terminal by wave point for relay base station provides the return path be connected with core net (backhaul).Particularly, by the packet to be sent of relay base station is carried out Internet protocol (InternetProtocol, IP) after encapsulation, donor base station is sent to via link terminal, the first equipment of the core network being in the same network segment by the IP address of IP address and link terminal by donor base station sends to Relay Server, Relay Server sends to the IP address of IP address and relay base station to be in the second equipment of the core network of the same network segment after this packet is carried out IP decapsulation, issued to internet (Internet) by the second equipment of the core network.Correspondingly, destination is that the Packet Generation of relay base station is to Relay Server by the second equipment of the core network, after Relay Server carries out IP encapsulation, link terminal is sent to by the donor base station of the first equipment of the core network and the first base station, link terminal is handed over to after IP encapsulation carries out IP decapsulation with decapsulation module and sends to relay base station, this IP encapsulates and can be deployed in relay base station with decapsulation module, also can be deployed in link terminal, can also be to be deployed in independently in entity device.
In the embodiment of the present invention, the relay base station building relay can be support arbitrarily the base station equipment of IP function, as the global system for mobile communications (GlobalSystemforMobileCommunication in 2G network, GSM) base station, TD SDMA (TimeDivision-SynchronousCodeDivisionMultipleAccess in 3G network, TD-SCDMA)/Wideband Code Division Multiple Access (WCDMA) (WidebandCodeDivisionMultipleAccess, WCDMA) base station, CDMA2000 base station, or Long Term Evolution (LongTermEvolution, LTE) evolution base station (LongTermEvolution in network, eNB), the link terminal building relay can be customer terminal equipment (CustomerPremiseEquipment, CPE), data card, common user terminal etc.
Visible, the embodiment of the present invention can adopt existing ordinary base station and ordinary terminal to realize the effect of relay, decrease the enforcement complexity of Relay equipment, and existing equipment of the core network (as SGW/PGW) can be utilized to carry out transfer of data, decrease the transformation to donor base station.In addition, because any ordinary terminal and ordinary base station can be combined into relay by the embodiment of the present invention, the application scenarios of expansion relays device is contributed to; Further, the relay in the embodiment of the present invention and the incidence relation that there is no between donor base station between producer, compare the situation that existing relay products must depend on the donor base station of same producer, can improve the application generality of relay.
Below in conjunction with Figure of description, the embodiment of the present invention is described in further detail."/" in following description of contents often can represent between the object of front and back it is a kind of relation of "or".
As shown in Figure 2, be a kind of Relay configuration diagram that the embodiment of the present invention provides.Encapsulate for the IP of relay below and be deployed in relay base station to illustrate that the data flow in this Relay framework is moved towards with decapsulation module.
General subscriber terminal (UserUE) sends packet by wave point (as Uu mouth) to relay base station (RN-eNB), relay base station sends to link terminal (RN-UE) after this packet is carried out IP encapsulation, packet after carrying out IP encapsulation is sent to donor base station (DeNB) by Uu mouth by link terminal, this donor base station will carry out the Packet Generation after IP encapsulation to the SGW/PGW of link terminal (i.e. the first equipment of the core network) by S1-U mouth, packet after this is carried out IP encapsulation by the SGW/PGW of link terminal sends to Relay Server by wired mode or wireless point-to-point transmission means.Relay Server sends to the SGW/PGW of UserUE after this packet is carried out IP decapsulation, here, the SGW/PGW of SGW/PGW and UserUE of link terminal can be deployed in same entity device, also can be deployed in different entity devices respectively.In this network architecture, also comprise with donor base station by S1-C port communications, with Relay Server by S1AP (i.e. S1-C, the applicationprotocol agreement of S1 interface) MME of the link terminal that communicates and UserUE, and the operation and maintenance (OperationandMaintenance of donor base station, O & M) entity, also comprise the O & M of the functional module-relay base station newly increased, and the neighbor base station (NeighboreNB) communicated by X2-AP with Relay Server.
The principle of carrying out IP encapsulation and decapsulation to the embodiment of the present invention below does lower explanation.
In the network of existing non-repeater mode, base station directly provides transfer function by wired or microwave technology, base station obtains network side and distributes or can directly communicate with equipment of the core network behind reserved IP address, does not need to dispose the IP related in the embodiment of the present invention and encapsulates and decapsulation module.In the relay of the embodiment of the present invention, relay base station directly cannot be connected to equipment of the core network by wire transmission or microwave transmission, needs to be communicated with equipment of the core network by link terminal; Also namely, adopt RN-UE as shown in Figure 2, the SGW/PGW of DeNB, RN-UE etc. provide the function being equivalent to wire transmission under non-repeater mode or microwave transmission for RN-eNB.By " RN-UE; the SGW/PGW etc. of DeNB, RN-UE " again for RN-eNB provides transmission channel, RN-eNB provides normal wireless access service for UserUE, the terminal that RN-UE no longer serves as one and accesses as UserUE, and there is provided a kind of transfer function of trunk type, this pattern is also repeater mode (also can be described as wireless backhaul pattern).
Link terminal in the embodiment of the present invention has local area network (LAN) (LAN, LocalAreaNetwork) gateway function, and relay base station can connect link terminal by Ethernet interface.In this case, link terminal needs the IP address distributing a local area network (LAN) to relay base station, if relay base station uses the IP address of this local area network (LAN) with equipment of the core network communication, the various protocol data-flows of relay base station inside need when passing through the LAN of link terminal to carry out network address translation (NetworkAddressTranslation, NAT).Meanwhile, because the IP address of relay base station is invisible in core-network side, therefore, core-network side also needs the configuration of the data route by complexity to realize data interchange.Visible, if the LAN subnet of ip address that relay base station directly uses link terminal to distribute communicates, higher implementation complexity can be brought.In view of this, the embodiment of the present invention solves this problem by " IP data encapsulation and decapsulation module ".Describe in detail below.
As shown in Figure 3, be the relay structural representation that the embodiment of the present invention one provides, comprise:
IP encapsulation and decapsulation module 31, after the packet to be sent of relay base station is carried out IP encapsulation, be delivered to signal transmitting and receiving module; And, for receiving the packet carried out after IP encapsulation that described signal transmitting and receiving module sends, and the packet carried out after IP encapsulation is carried out IP decapsulation.
Signal transmitting and receiving module 32, be arranged in link terminal, the packet carried out after IP encapsulation sent with decapsulation module is encapsulated for receiving described IP, and the packet after carrying out IP encapsulation is delivered to Relay Server by donor base station and the first equipment of the core network, send to the second equipment of the core network after carrying out IP decapsulation by described Relay Server; And, for receiving the packet carried out after IP encapsulation that described Relay Server is sent by described first equipment of the core network and described donor base station, and the packet after carrying out IP encapsulation is delivered to described IP encapsulation and decapsulation module; The IP address of described first equipment of the core network and the IP address of described link terminal belong to same IP network section, and the IP address of described second equipment of the core network and the IP address of described relay base station belong to same IP network section.
In specific implementation process, this IP encapsulates and can be deployed in relay base station with decapsulation module 31, also can be deployed in link terminal, can also be deployed in the entity device independent of relay base station and link terminal, not limit in the embodiment of the present invention.Described first equipment of the core network can refer to SGW/PGW, MME or OAM etc. of link terminal, and described second equipment of the core network can refer to SGW/PGW, MME or the OAM etc. of UserUE in Relay framework as shown in Figure 2.
In specific implementation process, this IP encapsulates the packet being sent to Internet with decapsulation module 31 pairs of relay base station and carries out IP encapsulation, carries out IP decapsulation to the packet that Internet sends over.Correspondingly, Relay Server carries out IP decapsulation to the packet that relay sends over, and carries out IP encapsulation to sending to the packet of relay.
Alternatively, described IP encapsulation and decapsulation module 31 are specifically for carrying out IP encapsulation according to following steps:
The IP protocol header of the relay base station of packet to be sent encapsulates the IP protocol header of link terminal; The first source IP address and the first object IP address is comprised in the IP protocol header of described relay base station; The second source IP address and the second object IP address is comprised in the IP protocol header of described link terminal;
Wherein, described first source IP address is the IP address of relay base station, and described first object IP address is the IP address of described second equipment of the core network; Described second source IP address is described link terminal is the local area network (LAN) subnet of ip address of relay base station distribution or the IP address of described link terminal, and described second object IP address is the IP address of described Relay Server or the IP address of described second equipment of the core network.
Here, the IP encapsulation that relay carries out is the IP protocol header encapsulating link terminal in the IP protocol header of relay base station.The IP address of relay base station described in the embodiment of the present invention refers to and to be in the same network segment with the second equipment of the core network, that distributed by the second equipment of the core network or other network equipment or the random IP address (sometimes referred to as IP-EPC address in following description) obtained, the IP address of link terminal is then in the same network segment with first equipment of the core network of serving this link terminal.If the second source IP address encapsulated here is link terminal is the local area network (LAN) subnet of ip address (being different from the IP address of above-mentioned relay base station) that relay base station is distributed, then IP encapsulation and decapsulation module 31 by the data packet transmission after encapsulating to the signal transmitting and receiving module 32 in link terminal, this signal transmitting and receiving module 32 sends after this local area network (LAN) subnet of ip address is replaced with the IP address of this link terminal.
Alternatively, if described second object IP address is the IP address of described second equipment of the core network, then described signal transmitting and receiving module also for, by the APN that configuration is corresponding with described Relay Server, indicate described second equipment of the core network that the packet after encapsulation is delivered to described Relay Server.
Here, when the second object IP address encapsulated is the IP address of Relay Server, directly can route a data packet to Relay Server according to this object IP address, when the second object IP address encapsulated is the IP address of the second equipment of the core network, can by configuring the APN (AccessPointName corresponding with Relay Server, APN), and be included in send carry out in the packet after IP encapsulation, indicate the second equipment of the core network that the packet after carrying out IP encapsulation is routed to described Relay Server.
Alternatively, the packet that described Relay Server can send based on relay carries out IP address learning, record and store the mapping relations of the IP address of link terminal and the IP address of relay base station, for the packet needing to send to relay base station, according to the mapping relations stored, carry out IP addressing of address, complete IP encapsulation.Or Relay Server also can carry out IP addressing of address according to the IP address mapping relation table of pre-configured relay base station and link terminal.
Particularly, Relay Server, after the packet after carrying out IP encapsulation is carried out IP decapsulation by described IP encapsulation and decapsulation module, preserves the mapping relations of the IP address of described relay base station after decapsulation and the IP address of described link terminal; After receiving the packet needing to send to described relay base station, according to the described mapping relations of preserving, IP encapsulation is carried out to described packet; Or,
Relay Server, after receiving the packet needing to send to described relay base station, by the mapping relations table of the IP address of the IP address and link terminal of searching pre-configured relay base station, carries out IP encapsulation to described packet.
Alternatively, the encapsulated delivery of packet can be carried out based on Internet protocol safety (InternetProtocolSecurity, IPsec) between relay and Relay Server.
As shown in Fig. 4 (a), Fig. 4 (b), Fig. 4 (c) He Fig. 4 (d), sets forth the data stream transmitting schematic flow sheet of user face, chain of command, operation maintenance data and the common data based on S1/X2 port transmission.Relate to not as the SGW/PGW (referred to as UserUE ' sS/PGW in figure) of the SGW/PGW (referred to as CPE ' sS/PGW in figure) of the ordinary terminal (UserUE) of link terminal, relay base station (RN-ENB), link terminal (CPE), donor base station (DeNB), link terminal, Relay Server (RNServer), UserUE in figure; The related protocol related to comprises PDCP (PacketDataConvergenceProtocol, PDCP) agreement, programmable logic controller (PLC) (ProgrammableLogicController, PLC) agreement, medium education (MediaAccessControl, MAC) agreement, physical layer (Physical, PHY) agreement, radio resource control (RadioResourceControl, RRC), layer 1 (L1) agreement, layer 2 (L2) agreement etc.; IP-EPC in figure refers to that the IP address of described relay base station (to be namely in the same network segment with the second equipment of the core network, that distributed by the second equipment of the core network or other network equipment or the random IP address obtained), IP-CPESubnet refers to that link terminal is the local area network (LAN) subnet of ip address that relay base station is distributed, and IP-CPE is the IP address of CPE.
For Fig. 3, be in relay base station cover under UserUE after being connected to network, by the PGW of UserUE to UserUE distributing IP address, after UserUE completes necessary signaling process, initiate certain application (Application, be called for short APP) data flow, this APP data flow is transferred to relay base station by air protocol, relay base station is resolved for air protocol data, and by the GPRS Tunnel Protocol (GPRSTunnellingProtocoluserplane of the IP address encapsulation of UserUE to user level, GTP-U, here GPRS is the abbreviation of GPRS GeneralPacketRadioService) and the User Datagram Protoco (UDP) (UserDatagramProtocol of correspondence, UDP) agreement.For encapsulating UDP, the customer traffic of GTP-U, described IP encapsulation and decapsulation module 31 are added with the IP address of relay base station (this IP address can be core-network side is that relay base station is distributed or reserved IP address) for source IP address further, the IP protocol header of IP address for the purpose of the second equipment of the core network of relay base station (the IP address as the SGW of relay base station).IP encapsulation on the basis of this IP protocol header, is added with the LAN subnet of ip address of link terminal distribution for source IP address, the IP protocol header of IP address for the purpose of the IP address of Relay Server with decapsulation module 31 further.It should be noted that, explanation given here is deployed in relay base station based on IP encapsulation with decapsulation module 31, when reality is implemented, this IP encapsulates and also can be deployed in link terminal with decapsulation module 31, can also be deployed in the independent community outside independent of link terminal and relay base station.
Further, packaged packet is sent to link terminal by the L2/L1 layer interface (Ethernet interface) between itself and link terminal by relay base station, link terminal uses NAT technology the IP address of LAN subnet to be replaced with the IP address of link terminal, the method of salary distribution of the IP address of link terminal is similar to the IP address assignment mode of UserUE, namely can by the SGW/PGW of terminal for it distributes.
Further, this packet sent from relay base station is transferred to Relay Server by eNB and SGW/PGW by link terminal, it should be noted that the data of the protocol header of the IP address of APP data, GTP-U/UDP protocol header and the relay base station encapsulating userUE are APP data for link terminal here.
Further, after the packet that Relay Server sends at the SGW/PGW receiving link terminal, carry out IP decapsulation, namely remove the IP protocol header that link terminal is relevant; Particularly, the IP address of link terminal can be removed, if the second object IP address is the IP address of Relay Server, then can also remove this second object IP address; .Further, Relay Server realizes data route according to the target SGW/PGW (i.e. the second equipment of the core network) of the UserUE obtained after decapsulation.
Chain of command data, operation maintenance data, based on S1/X2 port transmission common data forwarding process and the user face data forwarding process of above-mentioned introduction similar.Here, be with the slightly differentiated place of user face data forwarding process, the chain of command data of UserUE are called Non-Access Stratum (non-accesssignaling, NAS) signaling message, relay base station is after the NAS signaling receiving User-UE from eating dishes without rice or wine, use S1-C (i.e. S1AP, the applicationprotocol agreement of S1 interface) and SCTP (StreamControlTransmissionProtocol, SCTP) agreement encapsulates, and then uses the relevant IP address of core net to encapsulate; When carrying out IP encapsulation, source IP address is the IP address belonging to the relay base station of the same network segment with the second equipment of the core network, object IP address is the IP address of MME, after completing data encapsulation, then carry out IP tunneling protocol encapsulation, namely use described second source IP address to encapsulate, after completing data encapsulation, after routing to Relay Server via the SGW/PGW of CPE, DeNB, link terminal, Relay Server carries out IP decapsulation to this packet, then is forwarded to MME by Relay Server.
Operation maintenance data is directly initiated by relay base station or is stopped, User-UE is not needed to participate in, operation maintenance data encapsulates Simple Network Management Protocol (SimpleNetworkManagementProtocol, SNMP), further encapsulation second equipment of the core network or webmaster (OAM or O & M) belong to the exclusive IP address of the Operation and Maintenance of the same network segment specially for the distribution of this relay base station with webmaster, carry out IP tunnel encapsulation further again, namely described second source IP address is used to encapsulate, via link terminal, DeNB, the SGW/PGW of link terminal is forwarded to Relay Server, after carrying out IP decapsulation by Relay Server, be sent to the OAM of relay base station, here the O & M (OperationandMaintenance) of relay base station can be identical with DeNB, also can be different.
Common data is transmitted uncorrelated with UserUE with the data based on X2AP transmission based on S1AP, protocol data is initiated by relay base station equally or is stopped, after completing IP tunnel encapsulation, be forwarded to Relay Server via the SGW/PGW via link terminal, DeNB, link terminal, Relay Server routes to MME (common data for transmitting based on S1AP) or routes to adjacent base station (common data for transmitting based on X2AP) after carrying out IP decapsulation.
Encapsulate with decapsulation flow process corresponding with the IP of above-mentioned relay base station → Relay Server, when the trend of data flow is Relay Server → relay base station, by Relay Server, IP encapsulation is carried out to packet to be sent, and the packet after carrying out IP encapsulation is sent to relay base station through the first equipment of the core network, donor base station, link terminal; IP encapsulation in relay carries out IP decapsulation with decapsulation module 31.Particularly, Relay Server encapsulates the IP protocol header of link terminal in the IP protocol header of the packet of the second equipment of the core network received; Source IP address and object IP address is comprised in the IP protocol header of described link terminal; Wherein, this source IP address is the IP address of Relay Server or the IP address of described second equipment of the core network, and this object IP address is the IP address of described link terminal.Correspondingly, when IP encapsulation in relay carries out IP decapsulation with decapsulation module 31, namely remove the IP protocol header that link terminal is relevant, the IP address removing link terminal can be comprised, if this source IP address is the IP address of Relay Server, then can also remove the IP address of this Relay Server.
The explanation carried out for LTE network in above-mentioned diagram, the embodiment of the present invention can be applied to 2G/3G network equally, also can be applied in different network formats simultaneously, as shown in Figure 5, such as relay base station can be the base transceiver station (BaseTransceiverStation in 2G network, BTS) base station (NodeB) or in 3G network, and donor base station can be the evolution base station (eNB) in LTE network, can be now radio network controller (RadioNetworkController with the equipment of the core network of relay server, or base station controller (BaseStationController RNC), BSC), Relay Server is communicated with RNC by lub mouth, communicated with BSC by Abis mouth.
As shown in Figure 6, be the Relay Server structural representation that the embodiment of the present invention two provides, concrete enforcement can see the description of above-described embodiment one, and repeat part, repeat no more, this Relay Server comprises:
Signal transmitting and receiving module 61, for receive first equipment of the core network send from relay base station, and through the packet carried out after IP encapsulation that link terminal and donor base station send, and this is carried out the data packet transmission after IP encapsulation to IP encapsulation and decapsulation module 62, by Packet Generation to the second equipment of the core network carried out after IP decapsulation that described IP encapsulation is fed back with decapsulation module 62; And, for receiving the packet that the second equipment of the core network sends, by described data packet transmission to IP encapsulation and decapsulation module 62, and described IP encapsulation and decapsulation module 62 are fed back carry out IP encapsulation after packet send to link terminal by the donor base station of described first equipment of the core network and described relay base station, be transmitted to relay base station by described link terminal; The IP address of described first equipment of the core network and the IP address of described link terminal belong to same IP network section, and the IP address of described second equipment of the core network and the IP address of described relay base station belong to same IP network section;
IP encapsulation and decapsulation module 62, for described signal transmitting and receiving module 61 is transmitted carry out IP encapsulation after packet carry out IP decapsulation after feed back to described signal transmitting and receiving module 61; And described signal transmitting and receiving module 61 is fed back to after sending to the packet of relay base station to carry out IP encapsulation to the second equipment of the core network of described signal transmitting and receiving module 61 transmission.
Alternatively, described signal transmitting and receiving module 61 specifically for:
After the packet after carrying out IP encapsulation is carried out IP decapsulation by described IP encapsulation and decapsulation module 62, preserve the mapping relations of the IP address of described relay base station after decapsulation and the IP address of described link terminal; After receiving the packet needing to send to described relay base station, according to the described mapping relations of preserving, IP encapsulation is carried out to described packet; Or,
After receiving the packet needing to send to described relay base station, by the mapping relations table of the IP address of the IP address and link terminal of searching pre-configured relay base station, IP encapsulation is carried out to described packet.
Alternatively, described IP encapsulation and decapsulation module 62 are specifically for carrying out IP encapsulation according to following steps:
The IP protocol header of the packet from the second equipment of the core network encapsulates the IP protocol header of link terminal; Source IP address and object IP address is comprised in the IP protocol header of described link terminal; Wherein, described source IP address is the IP address of described Relay Server or the IP address of described second equipment of the core network, and described object IP address is the IP address of described link terminal.
Based on same inventive concept, additionally provide in the embodiment of the present invention and relay, trunking method that Relay Server is corresponding, because the implementing procedure of the method principle of dealing with problems and the relay that the embodiment of the present invention describes and server is similar, therefore the enforcement of the method see the enforcement of device, can repeat part and repeats no more.
As shown in Figure 7, be the trunking method flow chart that the embodiment of the present invention three provides, comprise:
Signal transmitting and receiving module is transferred to after the packet to be sent of relay base station is carried out IP encapsulation with decapsulation module by S701:IP encapsulation;
S702: the signal transmitting and receiving module being positioned at link terminal receives described IP and encapsulates the packet carried out after IP encapsulation sent with decapsulation module, and the packet after carrying out IP encapsulation is delivered to Relay Server by donor base station and the first equipment of the core network, send to the second equipment of the core network after carrying out IP decapsulation by described Relay Server; The IP address of described first equipment of the core network and the IP address of described link terminal belong to same IP network section, and the IP address of described second equipment of the core network and the IP address of described relay base station belong to same IP network section.
Alternatively, described IP encapsulation and decapsulation module are specifically for carrying out IP encapsulation according to following steps:
The IP protocol header of the relay base station of packet to be sent encapsulates the IP protocol header of link terminal; The first source IP address and the first object IP address is comprised in the IP protocol header of described relay base station; The second source IP address and the second object IP address is comprised in the IP protocol header of described link terminal;
Wherein, described first source IP address is the IP address of relay base station, and described first object IP address is the IP address of described second equipment of the core network; Described second source IP address is described link terminal is the local area network (LAN) subnet of ip address of relay base station distribution or the IP address of described link terminal, and described second object IP address is the IP address of described Relay Server or the IP address of described second equipment of the core network.
Alternatively, if described second source IP address is described link terminal is the local area network (LAN) subnet of ip address that relay base station is distributed, then described method also comprises:
Described link terminal in packet after carrying out IP encapsulation, before the packet after carrying out IP encapsulation is delivered to Relay Server by donor base station and the first equipment of the core network, is the IP address that local area network (LAN) subnet of ip address that relay base station is distributed replaces with described link terminal by described signal transmitting and receiving module.
Alternatively, if described second object IP address is the IP address of described second equipment of the core network, then described method also comprises: described signal transmitting and receiving module, by configuring the APN corresponding with described Relay Server, indicates described second equipment of the core network that the packet after encapsulation is delivered to described Relay Server.
As shown in Figure 8, be the trunking method flow chart that the embodiment of the present invention four provides, comprise:
S801: Relay Server receive that the first equipment of the core network sends from relay base station, and through the packet carried out after IP encapsulation that link terminal and donor base station send;
S802: described Relay Server is sent to the second equipment of the core network after the packet after carrying out IP encapsulation is carried out IP decapsulation; The IP address of described first equipment of the core network and the IP address of described link terminal belong to same IP network section, and the IP address of described second equipment of the core network and the IP address of described relay base station belong to same IP network section.
As shown in Figure 9, be the trunking method flow chart that the embodiment of the present invention five provides, comprise:
S901: the packet that the second equipment of the core network sends by Relay Server carries out IP encapsulation;
S902: the packet after carrying out IP encapsulation is sent to link terminal by the donor base station of the first equipment of the core network and relay base station by described Relay Server, is transmitted to described relay base station by described link terminal; The IP address of described first equipment of the core network and the IP address of described link terminal belong to same IP network section, and the IP address of described second equipment of the core network and the IP address of described relay base station belong to same IP network section.
Alternatively, the packet that the second equipment of the core network sends by described Relay Server carries out IP encapsulation, comprising:
Described Relay Server is after receiving the packet needing to send to described relay base station, according to before decapsulation first equipment of the core network send from relay base station carry out IP encapsulation after packet after, the IP address of relay base station of preserving and the mapping relations of the IP address of link terminal, carry out IP encapsulation to described packet; Or,
Described Relay Server, after receiving the packet needing to send to described relay base station, by the mapping relations table of the IP address of the IP address and link terminal of searching pre-configured relay base station, carries out IP encapsulation to described packet.
Alternatively, the packet that the second equipment of the core network sends by described Relay Server carries out IP encapsulation, comprising:
Described Relay Server encapsulates the IP protocol header of link terminal in the IP protocol header of the packet from the second equipment of the core network; Source IP address and object IP address is comprised in the IP protocol header of described link terminal; Wherein, described source IP address is the IP address of described Relay Server or the IP address of described second equipment of the core network, and described object IP address is the IP address of described link terminal.
As shown in Figure 10, be the trunking method flow chart that the embodiment of the present invention six provides, comprise:
S1001: the signal transmitting and receiving module being arranged in link terminal receives Relay Server after receiving the second equipment of the core network and sending to the packet of relay base station, by the packet carried out after IP encapsulation that the donor base station of the first equipment of the core network and relay base station sends, and this is carried out the Packet Generation after IP encapsulation to IP encapsulation and decapsulation module.
S1002: the packet after the described IP of carrying out encapsulation is carried out IP decapsulation with decapsulation module by described IP encapsulation; The IP address of described first equipment of the core network and the IP address of described link terminal belong to same IP network section, and the IP address of described second equipment of the core network and the IP address of described relay base station belong to same IP network section.
Those skilled in the art should understand, embodiments of the invention can be provided as method, system or computer program.Therefore, the present invention can adopt the form of complete hardware embodiment, completely software implementation or the embodiment in conjunction with software and hardware aspect.And the present invention can adopt in one or more form wherein including the upper computer program implemented of computer-usable storage medium (including but not limited to magnetic disc store, CD-ROM, optical memory etc.) of computer usable program code.
The present invention describes with reference to according to the flow chart of the method for the embodiment of the present invention, device (system) and computer program and/or block diagram.Should understand can by the combination of the flow process in each flow process in computer program instructions realization flow figure and/or block diagram and/or square frame and flow chart and/or block diagram and/or square frame.These computer program instructions can being provided to the processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing device to produce a machine, making the instruction performed by the processor of computer or other programmable data processing device produce device for realizing the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.
These computer program instructions also can be stored in can in the computer-readable memory that works in a specific way of vectoring computer or other programmable data processing device, the instruction making to be stored in this computer-readable memory produces the manufacture comprising command device, and this command device realizes the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.
These computer program instructions also can be loaded in computer or other programmable data processing device, make on computer or other programmable devices, to perform sequence of operations step to produce computer implemented process, thus the instruction performed on computer or other programmable devices is provided for the step realizing the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.
Although describe the preferred embodiments of the present invention, those skilled in the art once obtain the basic creative concept of cicada, then can make other change and amendment to these embodiments.So claims are intended to be interpreted as comprising preferred embodiment and falling into all changes and the amendment of the scope of the invention.
Obviously, those skilled in the art can carry out various change and modification to the present invention and not depart from the spirit and scope of the present invention.Like this, if these amendments of the present invention and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention is also intended to comprise these change and modification.
Claims (16)
1. a relay, is characterized in that, this device comprises:
IP encapsulation and decapsulation module, after the packet to be sent of relay base station is carried out IP encapsulation, be delivered to signal transmitting and receiving module; And, for receiving the packet carried out after IP encapsulation that described signal transmitting and receiving module sends, and the packet carried out after IP encapsulation is carried out IP decapsulation;
Signal transmitting and receiving module, be arranged in link terminal, the packet carried out after IP encapsulation sent with decapsulation module is encapsulated for receiving described IP, and the packet after carrying out IP encapsulation is delivered to Relay Server by donor base station and the first equipment of the core network, send to the second equipment of the core network after carrying out IP decapsulation by described Relay Server; And, for receiving the packet carried out after IP encapsulation that described Relay Server is sent by described first equipment of the core network and described donor base station, and the packet after carrying out IP encapsulation is delivered to described IP encapsulation and decapsulation module; The IP address of described first equipment of the core network and the IP address of described link terminal belong to same IP network section, and the IP address of described second equipment of the core network and the IP address of described relay base station belong to same IP network section.
2. device as claimed in claim 1, is characterized in that, described IP encapsulation and decapsulation module are specifically for carrying out IP encapsulation according to following steps:
The IP protocol header of the relay base station of packet to be sent encapsulates the IP protocol header of link terminal; The first source IP address and the first object IP address is comprised in the IP protocol header of described relay base station; The second source IP address and the second object IP address is comprised in the IP protocol header of described link terminal;
Wherein, described first source IP address is the IP address of relay base station, and described first object IP address is the IP address of described second equipment of the core network; Described second source IP address is described link terminal is the local area network (LAN) subnet of ip address of relay base station distribution or the IP address of described link terminal, and described second object IP address is the IP address of described Relay Server or the IP address of described second equipment of the core network.
3. device as claimed in claim 2, is characterized in that, if described second source IP address is described link terminal is the local area network (LAN) subnet of ip address that relay base station is distributed, then described signal transmitting and receiving module also for:
Before the packet after carrying out IP encapsulation is delivered to Relay Server by donor base station and the first equipment of the core network, be the IP address that local area network (LAN) subnet of ip address that relay base station is distributed replaces with described link terminal by the described link terminal in the packet after carrying out IP encapsulation.
4. device as claimed in claim 2, it is characterized in that, if described second object IP address is the IP address of described second equipment of the core network, then described signal transmitting and receiving module also for, by the APN that configuration is corresponding with described Relay Server, indicate described second equipment of the core network that the packet after encapsulation is delivered to described Relay Server.
5. a Relay Server, is characterized in that, described Relay Server comprises:
Signal transmitting and receiving module, for receive first equipment of the core network send from relay base station, and through the packet carried out after IP encapsulation that link terminal and donor base station send, and this is carried out the data packet transmission after IP encapsulation to IP encapsulation and decapsulation module, by Packet Generation to the second equipment of the core network carried out after IP decapsulation that described IP encapsulation is fed back with decapsulation module; And, for receiving the packet that the second equipment of the core network sends, by described data packet transmission to IP encapsulation and decapsulation module, and described IP encapsulation and decapsulation module are fed back carry out IP encapsulation after packet send to link terminal by the donor base station of described first equipment of the core network and described relay base station, be transmitted to relay base station by described link terminal; The IP address of described first equipment of the core network and the IP address of described link terminal belong to same IP network section, and the IP address of described second equipment of the core network and the IP address of described relay base station belong to same IP network section;
IP encapsulation and decapsulation module, for described signal transmitting and receiving module transfer carry out IP encapsulation after packet carry out IP decapsulation after feed back to described signal transmitting and receiving module; And described signal transmitting and receiving module is fed back to after sending to the packet of relay base station to carry out IP encapsulation to the second equipment of the core network of described signal transmitting and receiving module transfer.
6. server as claimed in claim 5, is characterized in that, described signal transmitting and receiving module specifically for:
After the packet after carrying out IP encapsulation is carried out IP decapsulation by described IP encapsulation and decapsulation module, preserve the mapping relations of the IP address of described relay base station after decapsulation and the IP address of described link terminal; After receiving the packet needing to send to described relay base station, according to the described mapping relations of preserving, IP encapsulation is carried out to described packet; Or,
After receiving the packet needing to send to described relay base station, by the mapping relations table of the IP address of the IP address and link terminal of searching pre-configured relay base station, IP encapsulation is carried out to described packet.
7. the server as described in claim 5 or 6, is characterized in that, described IP encapsulation and decapsulation module are specifically for carrying out IP encapsulation according to following steps:
The IP protocol header of the packet from the second equipment of the core network encapsulates the IP protocol header of link terminal; Source IP address and object IP address is comprised in the IP protocol header of described link terminal; Wherein, described source IP address is the IP address of described Relay Server or the IP address of described second equipment of the core network, and described object IP address is the IP address of described link terminal.
8. a trunking method, is characterized in that, the method comprises:
Signal transmitting and receiving module is transferred to after the packet to be sent of relay base station is carried out IP encapsulation with decapsulation module by IP encapsulation;
The signal transmitting and receiving module being positioned at link terminal receives described IP and encapsulates the packet carried out after IP encapsulation sent with decapsulation module, and the packet after carrying out IP encapsulation is delivered to Relay Server by donor base station and the first equipment of the core network, send to the second equipment of the core network after carrying out IP decapsulation by described Relay Server; The IP address of described first equipment of the core network and the IP address of described link terminal belong to same IP network section, and the IP address of described second equipment of the core network and the IP address of described relay base station belong to same IP network section.
9. method as claimed in claim 8, is characterized in that, described IP encapsulation and decapsulation module are specifically for carrying out IP encapsulation according to following steps:
The IP protocol header of the relay base station of packet to be sent encapsulates the IP protocol header of link terminal; The first source IP address and the first object IP address is comprised in the IP protocol header of described relay base station; The second source IP address and the second object IP address is comprised in the IP protocol header of described link terminal;
Wherein, described first source IP address is the IP address of relay base station, and described first object IP address is the IP address of described second equipment of the core network; Described second source IP address is described link terminal is the local area network (LAN) subnet of ip address of relay base station distribution or the IP address of described link terminal, and described second object IP address is the IP address of described Relay Server or the IP address of described second equipment of the core network.
10. method as claimed in claim 9, is characterized in that, if described second source IP address is described link terminal is the local area network (LAN) subnet of ip address that relay base station is distributed, then described method also comprises:
Described link terminal in packet after carrying out IP encapsulation, before the packet after carrying out IP encapsulation is delivered to Relay Server by donor base station and the first equipment of the core network, is the IP address that local area network (LAN) subnet of ip address that relay base station is distributed replaces with described link terminal by described signal transmitting and receiving module.
11. methods as claimed in claim 9, it is characterized in that, if described second object IP address is the IP address of described second equipment of the core network, then described method also comprises: described signal transmitting and receiving module, by configuring the APN corresponding with described Relay Server, indicates described second equipment of the core network that the packet after encapsulation is delivered to described Relay Server.
12. 1 kinds of trunking methods, it is characterized in that, the method comprises:
Relay Server receive that the first equipment of the core network sends from relay base station, and through the packet carried out after IP encapsulation that link terminal and donor base station send;
Described Relay Server is sent to the second equipment of the core network after the packet after carrying out IP encapsulation is carried out IP decapsulation; The IP address of described first equipment of the core network and the IP address of described link terminal belong to same IP network section, and the IP address of described second equipment of the core network and the IP address of described relay base station belong to same IP network section.
13. 1 kinds of trunking methods, it is characterized in that, the method comprises:
The packet that second equipment of the core network sends by Relay Server carries out IP encapsulation;
Packet after carrying out IP encapsulation is sent to link terminal by the donor base station of the first equipment of the core network and relay base station by described Relay Server, is transmitted to described relay base station by described link terminal; The IP address of described first equipment of the core network and the IP address of described link terminal belong to same IP network section, and the IP address of described second equipment of the core network and the IP address of described relay base station belong to same IP network section.
14. methods as claimed in claim 13, it is characterized in that, the packet that the second equipment of the core network sends by described Relay Server carries out IP encapsulation, comprising:
Described Relay Server is after receiving the packet needing to send to described relay base station, according to before decapsulation first equipment of the core network send from relay base station carry out IP encapsulation after packet after, the IP address of relay base station of preserving and the mapping relations of the IP address of link terminal, carry out IP encapsulation to described packet; Or,
Described Relay Server, after receiving the packet needing to send to described relay base station, by the mapping relations table of the IP address of the IP address and link terminal of searching pre-configured relay base station, carries out IP encapsulation to described packet.
15. methods as described in claim 13 or 14, it is characterized in that, the packet that the second equipment of the core network sends by described Relay Server carries out IP encapsulation, comprising:
Described Relay Server encapsulates the IP protocol header of link terminal in the IP protocol header of the packet from the second equipment of the core network; Source IP address and object IP address is comprised in the IP protocol header of described link terminal; Wherein, described source IP address is the IP address of described Relay Server or the IP address of described second equipment of the core network, and described object IP address is the IP address of described link terminal.
16. 1 kinds of trunking methods, it is characterized in that, the method comprises:
The signal transmitting and receiving module being arranged in link terminal receives Relay Server after receiving the second equipment of the core network and sending to the packet of relay base station, by the packet carried out after IP encapsulation that the donor base station of the first equipment of the core network and relay base station sends, and this is carried out the Packet Generation after IP encapsulation to IP encapsulation and decapsulation module;
Packet after the described IP of carrying out encapsulation is carried out IP decapsulation with decapsulation module by described IP encapsulation; The IP address of described first equipment of the core network and the IP address of described link terminal belong to same IP network section, and the IP address of described second equipment of the core network and the IP address of described relay base station belong to same IP network section.
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| CN107454659B (en) * | 2017-10-11 | 2020-06-30 | 北京佰才邦技术有限公司 | Terminal identification method, system, terminal equipment and base station |
| CN108966217B (en) * | 2018-08-29 | 2022-05-17 | 焦作市数据安全工程研究中心 | Secret communication method, mobile terminal and secret gateway |
| CN108966217A (en) * | 2018-08-29 | 2018-12-07 | 冯志杰 | A kind of secret communication method, mobile terminal and secrecy gateway |
| CN112566277A (en) * | 2019-09-25 | 2021-03-26 | 成都鼎桥通信技术有限公司 | Data returning method and device |
| CN112566277B (en) * | 2019-09-25 | 2023-01-31 | 成都鼎桥通信技术有限公司 | Data returning method and device |
| CN110798862A (en) * | 2019-09-27 | 2020-02-14 | 许继集团有限公司 | Data transmission method and device between service terminal and service master station |
| CN110798862B (en) * | 2019-09-27 | 2023-06-06 | 许继集团有限公司 | Method and device for transmitting data between service terminal and service master station |
| CN112019648A (en) * | 2020-08-03 | 2020-12-01 | 许继集团有限公司 | Method and system for automatically configuring IP of wireless communication network |
| CN112019648B (en) * | 2020-08-03 | 2024-01-02 | 许继集团有限公司 | Automatic configuration method and system for wireless communication network IP |
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