CN102045660B - Information interaction method, system, base station and network entity - Google Patents
Information interaction method, system, base station and network entity Download PDFInfo
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- CN102045660B CN102045660B CN200910236446.3A CN200910236446A CN102045660B CN 102045660 B CN102045660 B CN 102045660B CN 200910236446 A CN200910236446 A CN 200910236446A CN 102045660 B CN102045660 B CN 102045660B
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Abstract
The embodiment of the invention discloses an information interaction method, an information interaction system, a base station and a network entity. The method comprises that: the base station of a first communication system performs direct information interaction with the network entity in an access network of a second communication system by direct communication connection, wherein the first communication system is different from the second communication system. In the embodiment of the invention, the base station of the first communication system can perform direct information interaction with the network entity in the access network of the second communication system different from the first communication system by direct communication connection, so the information is prevented from being transmitted through a core network, and the information interaction delay between the base station of one communication system and the network entity of the access network of the other communication system is reduced.
Description
Technical field
The embodiment of the present invention relates to communication technical field, particularly a kind of information interacting method, system, base station and network entity.
Background technology
Along with the continuous upgrading of communication system, in order to save total all costs (Totoal Cost ofOwnership, hereinafter to be referred as: TCO), mobile operator has proposed single wireless Access Network (SingleRadio Access Network, hereinafter to be referred as: concept SRAN), it is dissimilar communication system, as global system for mobile communications (Global System for Mobile Communications, hereinafter to be referred as: GSM), universal mobile telecommunications system (Universal Mobile TelecommunicationsSystem, hereinafter to be referred as: UMTS) and Long Term Evolution (Long Term Evolution, hereinafter to be referred as: LTE) carry out network and build together.
In the system architecture of organizing to set up at 3GPP, the Access Network GERAN of GSM comprises base station controller (Base Station Controller, hereinafter to be referred as: BSC) and base transceiver station (BaseTransceiver Station, hereinafter to be referred as: BTS); The Access Network UTRAN of UMTS comprises radio network controller (Radio Network Controller, hereinafter to be referred as: RNC) and base station (NodeB), in addition, enhancing high-speed packet access (the High Speed Packet Access of UMTS, hereinafter to be referred as: Access Network HSPA+), owing to having adopted compressed structure, only comprises base station (NodeB+); The Access Network of LTE comprises the base station (eNodeB) of evolution.
In prior art, between the network entity in a kind of base station of communication system and the Access Network of another kind of communication system, carry out information interaction by core net.For example, the BSC in the eNodeB of LTE and the Access Network of GSM carries out information interaction by core net.
Inventor realizing in process of the present invention, finds that in prior art, there are the following problems:
In prior art, when network entity in a kind of base station of communication system and the Access Network of another kind of communication system carries out information interaction, need to carry out information transmission by core net, this causes between the network entity in a kind of base station of communication system and the Access Network of another kind of communication system information interaction time delay large.
Summary of the invention
The embodiment of the present invention provides a kind of information interacting method, system, base station and network entity, thereby reduces the information interaction time delay between the network entity in the base station of the first communication system and the Access Network of second communication system.
The embodiment of the present invention provides a kind of information interacting method, comprising:
Direct information interaction is carried out by the network entity in the Access Network of direct communication connection and second communication system in the base station of the first communication system, and described the first communication system is different from described second communication system.
The embodiment of the present invention also provides a kind of base station, and this base station applies, in the first communication system, comprising:
First information interactive module, carries out direct information interaction for the network entity of the Access Network by direct communication connection and second communication system, and described the first communication system is different from described second communication system.
The embodiment of the present invention also provides a kind of network entity, and this network entity is applied in the Access Network of second communication system, comprising:
The second information interaction module, for carrying out direct information interaction by the base station of direct communication connection and the first communication system, described the first communication system is different from described second communication system.
The embodiment of the present invention also provides a kind of information interaction system, comprising: be applied to the base station of the first communication system and be applied to the network entity of Access Network of second communication system, described the first communication system is different from described second communication system;
Described base station, for carrying out direct information interaction by direct communication connection and described network entity.
In the embodiment of the present invention, direct information interaction can be carried out by direct communication connection and the network entity being different from the Access Network of second communication system of the first communication system in the base station of the first communication system, avoid by core net transmission of information, thereby reduced the information interaction time delay between the base station of the first communication system and the network entity of the Access Network of second communication system.
Brief description of the drawings
Fig. 1 is the schematic diagram of the chain of command protocol stack of X2-R interface in the embodiment of the present invention;
Fig. 2 is the schematic diagram of the user face protocol stack of X2-R interface in the embodiment of the present invention;
Fig. 3 is the schematic diagram of the chain of command protocol stack of Iur-R interface in the embodiment of the present invention;
Fig. 4 is the schematic diagram of the user face protocol stack of Iur-R interface in the embodiment of the present invention;
The flow chart of a kind of information interacting method that Fig. 5 provides for the embodiment of the present invention two;
The flow chart of a kind of information interacting method that Fig. 6 provides for the embodiment of the present invention three;
The flow chart of a kind of information interacting method that Fig. 7 provides for the embodiment of the present invention four;
The flow chart of a kind of information interacting method that Fig. 8 provides for the embodiment of the present invention five;
The flow chart of a kind of information interacting method that Fig. 9 provides for the embodiment of the present invention six;
The flow chart of a kind of information interacting method that Figure 10 provides for the embodiment of the present invention seven;
The flow chart of a kind of information interacting method that Figure 11 provides for the embodiment of the present invention eight;
The flow chart of a kind of information interacting method that Figure 12 provides for the embodiment of the present invention nine;
The structural representation of a kind of base station that Figure 13 provides for the embodiment of the present invention ten;
The structural representation of a kind of network entity that Figure 14 provides for the embodiment of the present invention 11;
The structural representation of a kind of information interaction system that Figure 15 provides for the embodiment of the present invention 12.
Embodiment
Below by drawings and Examples, the technical scheme of the embodiment of the present invention is described in further detail.
The embodiment of the present invention one provides a kind of information interacting method, and the method comprises:
Direct information interaction is carried out by the network entity in the Access Network of direct communication connection and second communication system in the base station of the first communication system, and the first communication system is different from second communication system.
In the embodiment of the present invention, directly communication connection is what to be set up by logic interfacing by the network entity in the base station of the first communication system and the Access Network of second communication system.
In the embodiment of the present invention, logic interfacing can be the X2 interface of expansion, and the X2 interface of this expansion can be described as X2-R interface.X2-R interface comprises chain of command protocol stack and user face protocol stack.
As shown in Figure 1, Fig. 1 is the schematic diagram of the chain of command protocol stack of X2-R interface in the embodiment of the present invention.The chain of command protocol stack of X2-R interface comprises the chain of command protocol stack of base station of the first communication system and the chain of command protocol stack of the network entity of second communication system.The chain of command protocol stack of the base station of the first communication system comprises that (Stream Control Transmission Protocol is called for short: SCTP) layer and application signaling protocol (X2-R-AP) layer for physical layer (Physical Layer), data link layer (Data Link Layer), IP layer, stream control transmission protocol.Physical layer, data link layer, IP layer and SCTP layer are transmission network layer protocol.X2-R-AP is the agreement of expanding based on existing X2-AP, the wireless network layer protocol of X2-R interface on chain of command, X2-R-AP increases the mutual optional cell of support information on the basis of existing X2-AP, for example: the optional cell of load information, access control information, system message or configuration information.The chain of command protocol stack of the network entity of second communication system comprises physical layer, data link layer, IP layer, SCTP layer and the X2-R-AP layer corresponding with each layer of the chain of command protocol stack of the base station of the first communication system, wherein can be referring to the X2-R-AP layer of the first communication system to the description of X2-R-AP layer.
As shown in Figure 2, Fig. 2 is the schematic diagram of the user face protocol stack of X2-R interface in the embodiment of the present invention.The user face protocol stack of X2-R interface comprises the user face protocol stack of base station of the first communication system and the user face protocol stack of the network entity of second communication system.The user face protocol stack of the base station of the first communication system comprise physical layer, data link layer, IP layer, User Datagram Protoco (UDP) (User Datagram Protocol, hereinafter to be referred as: UDP) GPRS Tunnel Protocol of layer and user level (GPRS Tunnelling Protocolfor the user plane hereinafter to be referred as: GTP-U) layer.The user face protocol stack of the network entity of second communication system comprises physical layer, data link layer, IP layer, UDP layer and the GTP-U layer corresponding with each layer of the user face protocol stack of the base station of the first communication system.
In the embodiment of the present invention, logic interfacing can also be the Iur interface of expansion, and the Iur interface of this expansion can be described as Iur-R interface.Iur-R interface comprises chain of command protocol stack and user face protocol stack.As shown in Figure 3, Fig. 3 is the schematic diagram of the chain of command protocol stack of Iur-R interface in the embodiment of the present invention.The chain of command protocol stack of Iur-R interface comprises the chain of command protocol stack of base station of the first communication system and the chain of command protocol stack of the network entity of second communication system.The chain of command protocol stack of the base station of the first communication system comprises physical layer, data link layer, IP layer, SCTP layer, M3UA (SS7 MTP3-user adaptation) layer, signaling connection control protocol, and (Signaling Connection Control Part, hereinafter to be referred as SCCP) layer, application signaling protocol (Iur-R-AP) layer.Physical layer, data link layer, IP layer, SCTP layer, M3UA layer are transmission network layer protocol.Iur-R-AP is the agreement of expanding based on existing Iur-AP, the wireless network layer protocol of Iur-R interface on chain of command, Iur-R-AP increases the mutual optional cell of support information on the basis of existing Iur-AP, for example: the optional cell of load information, access control information, system message or configuration information.The chain of command protocol stack of the network entity of second communication system comprises physical layer, data link layer, IP layer, SCTP layer and the Iur-R-AP layer corresponding with each layer of the chain of command protocol stack of the base station of the first communication system, wherein can be referring to the Iur-R-AP layer of the first communication system to the description of Iur-R-AP layer.
As shown in Figure 4, Fig. 4 is the schematic diagram of the user face protocol stack of Iur-R interface in the embodiment of the present invention.The user face protocol stack of Iur-R interface comprises the user face protocol stack of base station of the first communication system and the user face protocol stack of the network entity of second communication system.The user face protocol stack of the base station of the first communication system comprises physical layer, data link layer, IP layer, UDP layer and GTP-U layer.The user face protocol stack of the network entity of second communication system comprises physical layer, data link layer, IP layer, UDP layer and the GTP-U layer corresponding with each layer of the user face protocol stack of the base station of the first communication system.
Logic interfacing in the present embodiment includes but not limited to the X2 interface of expansion and the Iur interface of expansion, and the interface that logic interfacing draws after can also adopting other existing interface being expanded in actual applications, will not enumerate at this.
In the present embodiment, the first communication system is a kind of communication system, and second communication system is another kind of communication system.The first communication system is different from the type that type that second communication system refers to the first communication system is different from second communication system, and the first communication system is the communication system that type is different from second communication system.
In the time that the first communication system is LTE, second communication system can be GSM, UMTS, HSPA+, code division multiple access (Code Division Multiple Access, hereinafter to be referred as: CDMA) 2000 High Rate Packet Data (High Rate Packet Data, hereinafter to be referred as: HRPD), the mono-carrier frequency Radio Transmission Technology of CDMA2000 (1x Radio Transmission Technology, hereinafter to be referred as: 1xRTT) or worldwide interoperability for microwave access (Worldwide Interoperability for Microwave Access, hereinafter to be referred as: WiMAX).In the time that second communication system is GSM, the network entity in the Access Network of this GSM is BSC; In the time that second communication system is UMTS, the network entity in the Access Network of this UMTS is RNC; In the time that second communication system is HSPA+, the network entity in the Access Network of this HSPA+ is NodeB+; In the time that second communication system is CDMA2000 HRPD, the network entity in the Access Network of this CDMA2000 HRPD be HRPD access network (Access Network, hereinafter to be referred as: AN); When second communication system is CDMA2000 1xRTT, the network entity in the Access Network of this CDMA2000 1xRTT is single carrier frequency base station controller 1x BSC; In the time that second communication system is WiMAX, the network entity in the Access Network of this WiMAX be WiMAX access business network (Access Service Network, hereinafter to be referred as: ASN).Now, logic interfacing can adopt X2-R interface, and the eNodeB of LTE can set up directly communication connection by X2-R interface with the WiMAX ASN of the 1xBSC of the HRPD AN of the NodeB+ of the RNC of the BSC of GSM, UMTS, HSPA+, CDMA2000 HRPD, CDMA2000 1xRTT or WiMAX.Wherein, in the time that second communication system is HSPA+ or UMTS, the eNodeB of LTE can also set up directly communication connection by Iur-R interface with the RNC of the NodeB+ of HSPA+ or UMTS.
In the time that the first communication system is HSPA+, second communication system can be GSM, LTE, CDMA 2000HRPD, CDMA2000 1xRTT or WiMAX.In the time that second communication system is GSM, the network entity in the Access Network of this GSM is BSC; In the time that second communication system is LTE, the network entity in the Access Network of this LTE is eNodeB+; In the time that second communication system is CDMA2000 HRPD, the network entity in the Access Network of this CDMA2000HRPD is HRPD AN; When second communication system is CDMA2000 1xRTT, the network entity in the Access Network of this CDMA2000 1xRTT is 1x BSC; In the time that second communication system is WiMAX, the network entity in the Access Network of this WiMAX is WiMAX ASN.Now, logic interfacing can adopt Iur-R interface, and the NodeB+ of HSPA+ can set up directly communication connection by Iur-R interface with the WiMAX ASN of the 1x BSC of the HRPD AN of the eNodeB+ of the RNC of the BSC of GSM, UMTS, LTE, CDMA2000 HRPD, CDMA2000 1xRTT or WiMAX.Wherein, in the time that second communication system is LTE, the NodeB+ of HSPA+ can also set up directly communication connection by X2-R interface with the eNodeB of LTE.
In the present embodiment, direct information interaction can be carried out by direct communication connection and the network entity being different from the Access Network of second communication system of the first communication system in the base station of the first communication system, avoid by core net transmission of information, thereby reduced the information interaction time delay between the base station of the first communication system and the network entity of the Access Network of second communication system.
The flow chart of a kind of information interacting method that Fig. 5 provides for the embodiment of the present invention two, as shown in Figure 5, the method comprises:
The base station of step 501, the first communication system sends information request message by direct communication connection to the network entity in the Access Network of second communication system;
In the present embodiment, information request message comprises request content and report manner.
Network entity in the Access Network of step 502, second communication system sends information according to information request message and by directly communicating to connect to the base station of the first communication system.
Particularly, network entity sends the information corresponding with request content in information request message by direct communication connection to base station.And in the time that the report manner in information request message is event, network entity only sends once corresponding with request content information to base station; In the time that the report manner in information request message is the cycle, network entity periodically sends the information corresponding with request content to base station, and the step 502 indication cycle property in Fig. 5 on dotted line sends the process of information.
In the time that report manner is the cycle, further, the method also comprises:
The base station of step 503, the first communication system stops message by direct communication connection to the network entity transmission information in the Access Network of second communication system;
This information stops message and stops sending to base station information for informing network entity.
In the present embodiment, the base station of the first communication system can send information request to the network entity in the Access Network of second communication system by direct communication connection, and obtain by direct communication connection the information that network entity sends, avoided base station by core net from network entity obtaining information, thereby reduce the information interaction time delay between the network entity in the base station of the first communication system and the Access Network of second communication system, made information interactive process reliability high; Reduce information interaction flow process; Reduce the dependence to core net, be conducive to the expansion of interactive information between the network entity in the base station of the first communication system and the Access Network of second communication system; And due to without by core net transmission of information, reduce the information loads of core net.
The flow chart of a kind of information interacting method that Fig. 6 provides for the embodiment of the present invention three, as shown in Figure 6, the method comprises:
Network entity in the Access Network of step 601, second communication system sends information request message by directly communicating to connect to the base station of the first communication system;
In the present embodiment, information request message comprises request content and report manner.
The base station of step 602, the first communication system sends information according to information request message and by logic interfacing to the network entity in the Access Network of second communication system.
Particularly, base station sends the information corresponding with request content in information request message by direct communication connection to network entity.And in the time that the report manner in information request message is event, base station sends once the information corresponding with request content to network entity; In the time that the report manner in information request message is the cycle, base station periodically sends the information corresponding with request content to network entity, and the step 602 indication cycle property in Fig. 6 on dotted line sends the process of information.
In the time that report manner is the cycle, further, the method also comprises:
Network entity in the Access Network of step 603, second communication system stops message by direct communication connection to the base station transmission information of the first communication system;
This information stops message and stops sending information to network entity for informing base station.
In the present embodiment, network entity in the Access Network of second communication system can send information request by directly communicating to connect to the base station of the first communication system, and obtain by direct communication connection the information that base station sends, avoided network entity by core net from base station obtaining information, thereby reduce network entity in the Access Network of second communication system and the information interaction time delay between the base station of the first communication system, made information interactive process reliability high; Reduce information interaction flow process; Reduce the dependence to core net, be conducive to the expansion of interactive information between network entity in the Access Network of second communication system and the base station of the first communication system; And due to without by core net transmission of information, reduce the information loads of core net.
The flow chart of a kind of information interacting method that Fig. 7 provides for the embodiment of the present invention four, as shown in Figure 7, the method comprises:
Network entity in the Access Network of step 701, second communication system sends information by directly communicating to connect to the base station of the first communication system.
The present embodiment is the network entity in the Access Network of second communication system initiatively sends situation from information to the base station of the first communication system.In the time that network entity detects information and changes, send information to base station by direct communication connection.
In the present embodiment, network entity in the Access Network of second communication system can send information by directly communicating to connect to the base station of the first communication system, avoid by core net to base station transmission of information, thereby reduce the information interaction time delay between the network entity in the base station of the first communication system and the Access Network of second communication system, made information interactive process reliability high; Reduce information interaction flow process; Reduce the dependence to core net, be conducive to the expansion of interactive information between the network entity in the base station of the first communication system and the Access Network of second communication system; And due to without by core net transmission of information, reduce the information loads of core net.
The flow chart of a kind of information interacting method that Fig. 8 provides for the embodiment of the present invention five, as shown in Figure 8, the method comprises:
The base station of step 801, the first communication system sends information by direct communication connection to the network entity in the Access Network of second communication system.
The present embodiment is the base station active of the first communication system sends situation from information to the network entity in the Access Network of second communication system.In the time that base station detects information and changes, send information by direct communication connection to network entity.
In the present embodiment, the base station of the first communication system can send information by directly communicating to connect to the network entity of second communication system, avoid by core net to network entity transmission of information, thereby reduce the information interaction time delay between the network entity in the base station of the first communication system and the Access Network of second communication system, made information interactive process reliability high; Reduce information interaction flow process; Reduce the dependence to core net, be conducive to the expansion of interactive information between the network entity in the base station of the first communication system and the Access Network of second communication system; And due to without by core net transmission of information, reduce the information loads of core net.
Specific descriptions to the first communication system, second communication system, network entity and logic interfacing in above-described embodiment two to embodiment five can, referring to above-described embodiment one, repeat no more herein.
In various embodiments of the present invention, carrying out mutual information by direct communication connection can comprise: load information, access control information, system message or configuration information.
Load information comprises hardware load information (Hardware load indicator), transport layer load information (TNL load indicator), wave point load information (Radio load indicator), cell capacity rank (Cell capacity class), total cell load (Total cell load), ensures bit rate business load (GBR load) or non-guarantee bit rate traffic load information (non-GBR load).
Access control information comprises that access grade restricted information (Access Class Barringinformation), community forbid access information (Cell barred information) or cell reservation information (Cell Reserved information).
Configuration information comprises cell type, frequency information, type of service or adjacent area type.
When the network entity in the Access Network of the base station in the first communication system or second communication system receives after load information, can be by this load information for mobile management, for example, in the time that UE will be switched to UMTS from LTE according to measurement report, the load information that the eNodeB of LTE can send according to the RNC of the UMTS receiving carries out switch decision, selects load little community to switch.The flow chart of a kind of information interacting method that as shown in Figure 9, Fig. 9 provides for the embodiment of the present invention six.The method comprises:
Network entity in the Access Network of step 901, second communication system is by directly communicating to connect the load information that sends the community of second communication system to the base station of the first communication system;
Wherein, the load information of the community of second communication system can comprise hardware load information, transport layer load information and wave point load information.
The base station of step 902, the first communication system receives the measurement report that UE reports, and this measurement report comprises the community of the second communication system that is applicable to UE switching;
When UE need to be switched in the community of second communication system due to mobility, subscriber equipment reports this measurement report to the base station in the first communication system.
Switch decision is carried out according to the load information of the community of second communication system in the base station of step 903, the first communication system, the community of the second communication system of switching from applicable UE, determines Target cell;
For example, load little community can, according to the load information of the community of second communication system, be selected as Target cell the community of the second communication system of switching from applicable UE in the base station of the first communication system.
In the present embodiment, when switch decision is carried out in the base station of the first communication system, the load information that can send by the network entity directly communicating to connect in the Access Network that receives second communication system, avoid by core net to the first communication systems communicate information, thereby reduced the information interaction time delay between the network entity in the base station of the first communication system and the Access Network of second communication system.The flow chart of a kind of information interacting method that Figure 10 provides for the embodiment of the present invention seven, as shown in figure 10, the method comprises:
The base station of step 1001, the first communication system initiates to switch, so that subscriber equipment (UserEquipment, hereinafter to be referred as: UE) switch into second communication system from LTE;
The base station of step 1002, the first communication system sends handover request (Handover Required) by direct communication connection to the network entity in the Access Network of second communication system;
Network entity in the Access Network of step 1003, second communication system sends switching command (Handover Command) by directly communicating to connect to the base station of the first communication system;
The base station of step 1004, the first communication system sends switching command to UE;
The Access Network of the second communication system at step 1005, UE access network entity place;
Step 1006, UE send and have switched (Handover Complete) to the network entity in the Access Network of second communication system, thereby complete the process of switching into opposite end communication system;
The base station of step 1007, the first communication system sends to by direct communication connection the user face data receiving the network entity in the Access Network of second communication system;
When in UE a period of time after the first communication system is switched second communication system, user face data also can be received in the base station of common the first communication system, and now the base station of the first communication system can send to network entity by the user face data receiving by direct communication connection.
The present embodiment is the handoff procedure of UE from the first communication system to second communication system.In prior art, the process that UE is switched to second communication system from the first communication system is as follows: taking the first communication system as LTE and second communication system as UMTS be example, eNodeB is to mobile management entity (the MobileManagenment Entity of LTE, hereinafter to be referred as: MME) send handover request, MME is to Serving GPRS Support Node (the Service GPRS Support Node of UMTS, hereinafter to be referred as: SGSN) send the directed request of forward direction, SGSN sends directed request to the RNC of UMTS, RNC sends the directed request of forward direction to SGSN and confirms, SGSN sends forward direction orientation response to MME, MME sends switching command to eNodeB.In prior art, owing to there is no interface between eNodeB and the RNC of UMTS, therefore in handoff procedure, the information interaction between eNodeB and RNC can only realize by core net.And directly communicate to connect owing to existing between eNodeB and RNC in the present embodiment, therefore between eNodeB and RNC, can directly carry out information interaction.In prior art, send handover request from eNodeB to MME to the process of switching command that receives MME and send, information interaction need to be across eNodeB, MME, SGSN and tetra-network elements of RNC, and in the present embodiment, information interaction only need to be across eNodeB and bis-network elements of RNC.That is to say that the information interaction between the network entity in the base station of the first communication system in the present embodiment and the Access Network of second communication system only need to, across two network elements, compared with prior art reduce information interaction time delay.In prior art, send the process of handover request to the switching command of reception MME transmission from eNodeB to MME, information interaction need to experience 3 interfaces totally 6 steps, and the present embodiment information interaction need to experience 1 interface totally 2 steps, compared with prior art reduce information interaction flow process.
To be UE switch the information interaction flow process of Access Network one side second communication systematic procedure from the first communication system to the present embodiment.Further, between step 1002 and step 1003, also can comprise that the network entity in the core net of second communication system at network entity and this network entity place carries out the step of forward direction orientation; Between step 1004 and step 1005, can also comprise that the network entity in the core net of the first communication system at base station and place, base station carries out the step of forward direction orientation.
In the present embodiment, information interaction can be carried out to complete the handoff procedure between communication network by the network entity in the Access Network of direct communication connection and second communication system in the base station of the first communication system, avoid by core net transmission of information, thereby reduce the information interaction time delay between the network entity in the base station of the first communication system and the Access Network of second communication system, made information interactive process reliability high; Reduce information interaction flow process; Reduce the dependence to core net, be conducive to the expansion of interactive information between the network entity in the base station of the first communication system and the Access Network of second communication system; And due to without by core net transmission of information, reduce the information loads of core net.
The flow chart of a kind of information interacting method that Figure 11 provides for the embodiment of the present invention eight, as shown in figure 11, the method comprises:
Network entity in the Access Network of step 1101, second communication system initiates to switch, so that UE switches into the first communication system from second communication system;
Network entity in the Access Network of step 1102, second communication system sends handover request (Handover Required) by directly communicating to connect to the base station of the first communication system;
The base station of step 1103, the first communication system sends switching command (Handover Command) by direct communication connection to the network entity in the Access Network of second communication system;
Network entity in the Access Network of step 1104, second communication system sends switching command to UE;
The Access Network of first communication system at step 1105, UE access base station place;
Step 1106, UE send and have switched (HandoverComplete) to the base station of the first communication system, thereby complete the process of switching into the first communication system;
The base station of step 1107, the first communication system sends to network entity by direct communication connection by the user face data receiving;
When in UE a period of time after second communication system is switched the first communication system, conventionally the network entity in second communication system also can receive user face data, and now network entity can directly send to the user face data receiving the base station of the first communication system.
The present embodiment compared with prior art, has reduced information interaction time delay, has reduced information interaction flow process, and specific descriptions can be referring to the description of embodiment seven.
To be UE switch the information interaction flow process of Access Network one side the first communication system process from second communication system to the present embodiment.Further, between step 1102 and step 1104, also can comprise that the network entity in the core net of the first communication system at place, Yu Gai base station, base station carries out the step of forward direction orientation; Between step 1104 and step 1105, can also comprise that the network entity in the second communication system at network entity and network entity place carries out the step of forward direction orientation.
In the present embodiment, information interaction can be carried out to complete the handoff procedure between communication network by the network entity in the Access Network of direct communication connection and second communication system in the base station of the first communication system, avoid by core net transmission of information, thereby reduce the information interaction time delay between the network entity in the base station of the first communication system and the Access Network of second communication system, made information interactive process reliability high; Reduce information interaction flow process; Reduce the dependence to core net, be conducive to the expansion of interactive information between the network entity in the base station of the first communication system and the Access Network of second communication system; And due to without by core net transmission of information, reduce the information loads of core net.
Specific descriptions to the first communication system, second communication system, network entity and logic interfacing in above-described embodiment seven and embodiment eight can, referring to above-described embodiment one, repeat no more herein.
Below by a specific embodiment, information interacting method is specifically described.In the present embodiment, the first communication system is LTE, and base station is eNodeB, and second communication system is UMTS, and network entity is RNC, and directly communication connection is set up by X2-R interface.For the technical scheme of clearer description the present embodiment, eNodeB is called to source eNodeB, RNC is called Target RNC.
The flow chart of a kind of information interacting method that Figure 12 provides for the embodiment of the present invention nine, as shown in figure 12, the method comprises:
Step 1201, source eNodeB initiate to switch;
Step 1202, source eNodeB send handover request Handover Required by directly communicating to connect to Target RNC;
Step 1203, Target RNC send the directed request of forward direction (Forward RelocationRequest) to target SGSN;
Step 1204, target SGSN to destination service gateway (Serving Gateway, hereinafter to be referred as: S-GW) send the carrying request (Create Bearer Request) that creates;
Step 1205, target S-GW send and create carrying response (Create BearerResponse) to target SGSN;
Step 1206, target SGSN send forward direction orientation response (Forward RelocationResponse) to Target RNC;
Step 1207, Target RNC are by directly communicating to connect to source eNodeB and send switching command (Handover Command);
Step 1208, source eNodeB send the directed request of forward direction (Forward RelocationRequest) to source MME;
Step 1209, MMEXiang source, source S-GW send the carrying request (Create Bearer Request) that creates;
Step 1210, source S-GW send and create carrying response (Create BearerResponse) to source MME;
Step 1211, MMEXiang source, source eNodeB send forward direction orientation response (Forward RelocationResponse);
Step 1212, source eNodeB send switching command to UE;
The Access Network at step 1213, UE access Target RNC place;
Step 1214, UE send and have switched (Handover Complete) to Target RNC;
Step 1215, packet data network gateway (Packet Data Network Gateway, hereinafter to be referred as: PDN GW) send user plane protocol data cell PDU data by source S-GW to source eNodeB;
Step 1216, source eNodeB send to Target RNC by direct communication connection by the user's face PDU data that receive;
Step 1217, Target RNC send orientation to target SGSN and complete (Relocation Complete);
Step 1218, target SGSN send forward direction orientation to target source MME and complete (ForwardRelocation Complete);
Step 1219, source MME send forward direction orientation to target SGSN and complete confirmation (ForwardRelocation Complete Acknowledge);
Step 1220, target SGSN send more new bearer request (Update BearerRequest) to target S-GW;
Step 1221, target S-GW send more new bearer request (Update BearerRequest) to PDN GW;
Step 1222, PDN GW send more new bearer response (Update BearerResponse) to target S-GW;
Step 1223, target S-GW send more new bearer response (Update BearerResponse) to target SGSN;
Step 1224, UE and PDN GW carry out the transmission of user's face PDU data by Target RNC and source S-GW;
Step 1225, routing region updating;
Step 1226, MMEXiang source, source S-GW send deleting bearing request (Delete Bearer Request);
Step 1227, source eNodeB and source MME releasing resource;
Step 1228, source S-GW send deleting bearing response (Delete BearerResponse) to source MME;
Step 1229, target SGSN and target S-GW deleting bearing.
To be UE be switched to the handoff procedure of UMTS and the eNodeB of LTE the user face data receiving be transmitted to the process of the RNC of UMTS from LTE to the present embodiment.And UE is switched to the handoff procedure of LTE from UMTS similar to the handoff procedure that UE is switched to UMTS from LTE, the process of eNodeB and the eNodeB of LTE that the RNC of UMTS is transmitted to the user face data receiving LTE are transmitted to the user face data receiving the similar process of the RNC of UMTS, and repeat no more herein.
In the present embodiment, information interaction can be carried out to complete the handoff procedure between communication network by the network entity in the Access Network of direct communication connection and second communication system in the base station of the first communication system, avoid by core net transmission of information, thereby reduce the information interaction time delay between the network entity in the base station of the first communication system and the Access Network of second communication system, made information interactive process reliability high; Reduce information interaction flow process; Reduce the dependence to core net, be conducive to the expansion of interactive information between the network entity in the base station of the first communication system and the Access Network of second communication system; And due to without by core net transmission of information, reduce the information loads of core net.
The structural representation of a kind of base station that Figure 13 provides for the embodiment of the present invention ten, as shown in figure 13, the base station applies of the present embodiment is in the first communication system, this base station comprises first information interactive module 11, first information interactive module 11 is carried out direct information interaction for the network entity of the Access Network by direct communication connection and second communication system, and the first communication system is different from second communication system.
Wherein, directly communication connection is what to be set up by logic interfacing by the network entity in the base station of the first communication system and the Access Network of second communication system.
Particularly, the specific descriptions to the first communication system, second communication system, network entity and logic interfacing in the present embodiment can, referring to above-described embodiment one, repeat no more herein.
In the present embodiment, information interaction can be carried out by direct communication connection and the network entity being different from the Access Network of second communication system of the first communication system in the base station of the first communication system, avoid by core net transmission of information, thereby reduced the information interaction time delay between the base station of the first communication system and the network entity of the Access Network of second communication system.
The structural representation of a kind of network entity that Figure 14 provides for the embodiment of the present invention 11, as shown in figure 14, network entity in the present embodiment is applied in the Access Network of second communication system, this network entity comprises the second information interaction module 21, the second information interaction module 21 is for carrying out direct information interaction by the base station of direct communication connection and the first communication system, and the first communication system is different from second communication system.
Wherein, directly communication connection is what to be set up by logic interfacing by the network entity in the base station of the first communication system and the Access Network of second communication system.
Particularly, the specific descriptions to the first communication system, second communication system, network entity and logic interfacing in the present embodiment can, referring to above-described embodiment one, repeat no more herein.
In the present embodiment, network entity in the Access Network of second communication system can by direct communication connection be different from second communication system the first communication system base station carry out direct information interaction, avoid by core net transmission of information, thereby reduced the information interaction time delay between the network entity of Access Network and the base station of the first communication system of second communication system.
The structural representation of a kind of information interaction system that Figure 15 provides for the embodiment of the present invention 12, as shown in figure 15, this system comprises base station 1 and network entity 2, and base station 1 is applied to the first communication system, network entity 2 is applied to second communication system, and the first communication system is different from second communication system; Base station 1 is for carrying out direct information interaction by direct communication connection and network entity 2.
Particularly, base station 1 can be referring to the description in embodiment ten, and network entity 2 can, referring to the description in embodiment 11, repeat no more herein.
In the information interaction system of the present embodiment, direct information interaction can be carried out by direct communication connection and the network entity being different from the Access Network of second communication system of the first communication system in the base station of the first communication system, avoid by core net transmission of information, thereby reduce the information interaction time delay between the network entity in the base station of the first communication system and the Access Network of second communication system, made information interactive process reliability high; Reduce information interaction flow process; Reduce the dependence to core net, be conducive to the expansion of interactive information between the network entity in the base station of the first communication system and the Access Network of second communication system; And due to without by core net transmission of information, reduce the information loads of core net.
Logic interfacing in the embodiment of the present invention can be disposed at base station and the network entity with cell neighboring relation, or is disposed at base station and the network entity without cell neighboring relation.Conventionally this logic interfacing is disposed at base station and the network entity with cell neighboring relation, to realize the information interaction between base station and the network entity with cell neighboring relation.
Technical scheme in the embodiment of the present invention can well meet collaborative RRM (Cooperation Radio Resource Management under SRAN scene, be called for short: demand Co-RRM), specifically can be used for being achieved as follows application: load balance between system, business layering between system, between wireless access network, (Network Assisted Cell Change is changed in Inter-RAT network assisted cell, be called for short: NACC), associating pass carrier frequency, common transmission is shared etc.
Finally it should be noted that: above embodiment is only in order to technical scheme of the present invention to be described but not be limited, although the present invention is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that: it still can be modified or be equal to replacement technical scheme of the present invention, and these amendments or be equal to replacement and also can not make amended technical scheme depart from the spirit and scope of technical solution of the present invention.
Claims (11)
1. an information interacting method, is characterized in that, comprising:
Direct information interaction is carried out by the network entity in the Access Network of direct communication connection and second communication system in the base station of the first communication system, described the first communication system is different from described second communication system, wherein, described direct communication connection is to be set up by logic interfacing by the network entity in the base station of described the first communication system and the Access Network of described second communication system, and the chain of command protocol stack of described logic interfacing comprises the chain of command protocol stack of base station of described the first communication system and the chain of command protocol stack of the network entity of described second communication system.
2. method according to claim 1, is characterized in that, described logic interfacing comprises the X2 interface of expansion or the Iur interface of expansion.
3. method according to claim 1, is characterized in that, the base station of described the first communication system is carried out direct information interaction by the network entity in the Access Network of direct communication connection and second communication system and comprised:
Described base station sends information request message by described direct communication connection to described network entity, receives by described direct communication connection the information that described network entity sends according to described information request message; Or
Described base station receives by described direct communication connection the information request message that described network entity sends, and sends information by described direct communication connection to described network entity according to described information request message.
4. method according to claim 3, is characterized in that,
In the time that described base station sends information request message by described direct communication connection to described network entity, describedly also comprise after receiving by described direct communication connection the information that described network entity sends according to described information request message: described base station stops message by described direct communication connection to described network entity transmission information; Or
In the time that described base station receives by described direct communication connection the information request message that described network entity sends, describedly after sending information, described network entity also comprises by described direct communication connection according to described information request message: the information that described base station receives described network entity transmission by described direct communication connection stops message.
5. method according to claim 1, is characterized in that, the base station of described the first communication system is carried out direct information interaction by the network entity in the Access Network of direct communication connection and second communication system and comprised:
Described base station receives by described direct communication connection the information that described network entity sends; Or
Described base station sends information by described direct communication connection to described network entity.
6. method according to claim 1, it is characterized in that, the base station of described the first communication system is carried out direct information interaction by the network entity in the Access Network of direct communication connection and second communication system and is comprised: described base station sends handover request by described direct communication connection to described network entity; Described base station receives by described direct communication connection the switching command that described network entity sends; Or
Described base station receives by described direct communication connection the handover request that described network entity sends; Described base station sends switching command by described direct communication connection to described network entity.
7. method according to claim 6, it is characterized in that, described base station also comprises after described network entity sends handover request by described direct communication connection: described base station sends user face data by described direct communication connection to described network entity; Or
The handover request that described base station receives described network entity transmission by described direct communication connection also comprises afterwards: described base station receives by described direct communication connection the user face data that described network entity sends.
8. method according to claim 1, is characterized in that, the base station of described the first communication system is carried out direct information interaction by the network entity in the Access Network of direct communication connection and second communication system and comprised:
Described base station receives the load information of the community of the described second communication system of described network entity transmission by described direct communication connection.
9. method according to claim 8, is characterized in that, also comprises:
Described base station receives the measurement report of user equipment to report, and described measurement report comprises the community of the second communication system that is applicable to described subscriber equipment switching;
Switch decision is carried out according to the load information of the community of described second communication system in described base station, from the community of the described second communication system that is applicable to described subscriber equipment switching, determines Target cell.
10. according to the arbitrary described method of claim 1 to 5, it is characterized in that, described information comprises: load information, access control information, system message or configuration information.
11. 1 kinds of information interaction systems, is characterized in that, comprising: be applied to the base station of the first communication system and be applied to the network entity in the Access Network of second communication system, described the first communication system is different from described second communication system;
Described base station, for carrying out direct information interaction by direct communication connection and described network entity, wherein, described direct communication connection is to be set up by logic interfacing by the network entity in the base station of described the first communication system and the Access Network of described second communication system, and the chain of command protocol stack of described logic interfacing comprises the chain of command protocol stack of base station of described the first communication system and the chain of command protocol stack of the network entity of described second communication system.
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| CN102421145B (en) * | 2011-11-24 | 2015-02-04 | 中国联合网络通信集团有限公司 | Method and system for carrying out direct communication of data among base stations |
| US9240881B2 (en) * | 2012-04-30 | 2016-01-19 | Alcatel Lucent | Secure communications for computing devices utilizing proximity services |
| CN103428793A (en) * | 2012-05-14 | 2013-12-04 | 中兴通讯股份有限公司 | Intersystem switching processing method, switching method and switching device |
| CN103476138A (en) * | 2012-06-08 | 2013-12-25 | 普天信息技术研究院有限公司 | Method of interaction information between different communication systems |
| CN103476153A (en) * | 2012-06-08 | 2013-12-25 | 普天信息技术研究院有限公司 | Interface establishment method between 2G system and LTE system |
| CN103476047A (en) * | 2012-06-08 | 2013-12-25 | 普天信息技术研究院有限公司 | Common measurement method between 2G system and LTE system |
| CN103476068A (en) * | 2012-06-08 | 2013-12-25 | 普天信息技术研究院有限公司 | Resource reservation method and system thereof |
| CN103476137A (en) * | 2012-06-08 | 2013-12-25 | 普天信息技术研究院有限公司 | Method of establishing interface between 3G system and LTE system |
| CN103476071A (en) * | 2012-06-08 | 2013-12-25 | 普天信息技术研究院有限公司 | Apparatus used for realizing interaction of 2G access network and 4G access network |
| CN103476136A (en) * | 2012-06-08 | 2013-12-25 | 普天信息技术研究院有限公司 | Apparatus used for realizing interaction of 3G access network and 4G access network |
| CN103476135A (en) * | 2012-06-08 | 2013-12-25 | 普天信息技术研究院有限公司 | Method of interaction information between different communication systems |
| CN103476067A (en) * | 2012-06-08 | 2013-12-25 | 普天信息技术研究院有限公司 | Resource reservation method and system thereof |
| CN104105126A (en) * | 2013-04-03 | 2014-10-15 | 北京三星通信技术研究有限公司 | Method for load report between UMTS system and LTE system |
| CN105992293B (en) * | 2015-02-09 | 2020-01-07 | 电信科学技术研究院 | Method and equipment for switching between networks |
| JP7189316B2 (en) * | 2018-07-20 | 2022-12-13 | オッポ広東移動通信有限公司 | Session management method, terminal device and network device |
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