CN102438273B

CN102438273B - Method and relevant device for Internet protocol (IP) communication among cluster network elements as well as communication system

Info

Publication number: CN102438273B
Application number: CN201110447942.0A
Authority: CN
Inventors: 代雯雯; 秦圣奕; 马洪波
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2011-12-28
Filing date: 2011-12-28
Publication date: 2014-10-08
Anticipated expiration: 2031-12-28
Also published as: CN102438273A

Abstract

The embodiment of the invention discloses a method and a relevant device for Internet protocol (IP) communication among cluster network elements as well as a communication system. The method for the IP communication among the cluster network elements comprises the following steps that: at least one transmission layer tunnel is established between a first network element and a second network element, wherein the first network element and the second network element belong to the same cluster; if the second network element is in accordance with a transfer processing condition, the first network element packages a control surface message or user surface data to be transferred as a transmission layer message corresponding to one of the transmission layer tunnels; the transmission layer message is packaged as an IP message corresponding to the transmission layer tunnel; the IP message is packaged into a data frame; and the first network element sends the data frame to the second network element. The scheme provided by the embodiment of the invention is favorable for improving the disaster tolerance capability of network equipment and the whole service processing capability of a network.

Description

IP communication means and relevant apparatus and communication system between cluster network element

Technical field

The present invention relates to communication technical field, be specifically related to Internet protocol IP communication means and relevant apparatus and communication system between cluster network element.

Background technology

Current, radio network controller (RNC, Radio Network Controller) as the important component part of 3 G mobile communication network, be that flow collects, an emphasis of conversion, soft or hard call forwarding and intelligent residential district and packet transaction, therefore the network security of RNC is extremely important.

Along with the fast development that promotes mobile Internet is merged in intelligent terminal and abundant application mutually, intelligent mobile phone terminal taking the iPhone of Apple as representative has attracted a large number of users to use mobile network with its outstanding design, increase the mobile subscriber size of operator, also brought the impact of data tsunamis to network.And the network load that produces of smart mobile phone normally regular handset 3-8 doubly, this means that Mobile Network Operator, in the time that same data access ability is provided, has to pay more Internet resources.Meanwhile, due to the difference of region and individual behavior, the even same RNC of the RNC of different geographical is not in the same time, and traffic carrying capacity may have very big-difference.For example, be generally to live in the residential area in suburbs in the work of intown service area in big city customer group, thereby cause the load of the RNC in center, city and suburbs to present " tidal effect ".

In recent years, global geological disaster and region conflict take place frequently, and cause the great attention of Liao Ge great operator to network equipment disaster tolerance abilities such as RNC.

Therefore, how to improve the network equipments such as such as RNC in network disaster tolerance ability, improve network entirety traffic handing capacity (for example resisting data tsunami or tidal effect ability etc.), be the problem that industry is extremely paid close attention to.

Summary of the invention

The embodiment of the present invention provides IP communication means and relevant apparatus and communication system between cluster network element, to improving disaster tolerance ability and the network entirety traffic handing capacity of the network equipment.

For solving the problems of the technologies described above, the embodiment of the present invention improves following technical scheme:

On the one hand, the embodiment of the present invention provides IP communication means between a kind of cluster network element, comprising:

At least one transport layer tunnel between the first network element foundation and the second network element; Wherein, described the first network element and the second network element belong to same cluster;

If the second network element meets transfer processing condition, the chain of command message of processing to be transferred or user face data are encapsulated as the wherein corresponding transport layer message in transport layer tunnel in described at least one transport layer tunnel by the first network element; A transport layer tunnel corresponding Internet protocol IP message wherein described in described transport layer message is encapsulated as; Described IP message is encapsulated as to Frame;

The first network element sends described Frame to the second network element.

On the other hand, the embodiment of the present invention provides the also IP communication means between a kind of cluster network element, comprising:

At least one transport layer tunnel between the second network element foundation and the first network element; Wherein, described the first network element and the second network element belong to same cluster;

If the second network element receives the Frame from the first network element, and described in decapsulation, Frame obtains the wherein transport layer tunnel corresponding Internet protocol IP message in described at least one transport layer tunnel; This IP message of decapsulation obtain described in a corresponding transport layer message in transport layer tunnel wherein; Controlled message of this transport layer message of decapsulation or user face data;

The second network element is processed described chain of command message or user face data.

On the other hand, the embodiment of the present invention provides also a kind of network element, comprising:

Transport layer tunnel module, for setting up at least one transport layer tunnel between described network element and the second network element; Wherein, described network element and the second network element belong to same cluster;

Application layer module, assembles chain of command message or the user face data of processing to be transferred when meeting preset transfer processing condition at the second network element, and chain of command message or the user face data of the processing to be transferred of assembling are sent to transport layer tunnel module;

Described transport layer tunnel module also for, chain of command message or the user face data of the processing to be transferred of described application layer module assembling are encapsulated as to the wherein corresponding transport layer message in transport layer tunnel in described at least one transport layer tunnel, a transport layer tunnel corresponding Internet protocol IP message wherein described in described transport layer message is encapsulated as, sends to IP layer module by this IP message;

IP layer module, for searching routing iinformation corresponding to described IP message, sends to Data Link Layer Module by described IP message and routing iinformation corresponding to this IP message finding;

Data Link Layer Module, for being encapsulated as Frame according to routing iinformation corresponding to described IP message by this IP message;

Physical layer block, for sending the Frame of described Data Link Layer Module encapsulation to the second network element.

Transport layer tunnel module, for setting up at least one transport layer tunnel between described network element and the first network element; Wherein, the first network element and described network element belong to same cluster;

Data Link Layer Module, for receiving after the Frame from the first network element in physical layer block, described in decapsulation, Frame obtains the wherein transport layer tunnel corresponding Internet protocol IP message in described at least one transport layer tunnel, and this IP message is mail to IP layer module;

IP layer module, for determining the transport layer protocol type corresponding to transport layer message of IP message carrying, the transport layer tunnel module corresponding to this transport layer protocol type sends this IP message;

Described transport layer tunnel module is also for, a corresponding transport layer message in transport layer tunnel wherein described in decapsulation obtains from the IP message of IP layer module; Controlled message of this transport layer message of decapsulation or user face data, and this chain of command message or user face data are mail to corresponding application layer module;

Application layer module, for the treatment of chain of command message or user face data from described transport layer tunnel module.

On the other hand, the embodiment of the present invention provides also a kind of communication system, comprising:

Network element as described in above-described embodiment.

Therefore, at least one transport layer tunnel between the first network element foundation in embodiment of the present invention cluster and the second network element of same cluster, if the second network element meets transfer processing condition, the first network element can be encapsulated as the wherein corresponding transport layer message in transport layer tunnel in this at least one transport layer tunnel by the chain of command message of processing to be transferred or user face data; This transport layer message is encapsulated as to this wherein corresponding IP message in transport layer tunnel; This IP message is encapsulated as to Frame; The first network element sends this Frame to the second network element, and this receives the second network element and processes and shift chain of command message or user's face number of coming.Based on above-mentioned mechanism, between the network element of same cluster, can transmit chain of command message or the user face data of processing to be transferred in the transport layer tunnel based on setting up, the network element of same like this cluster not only can be shared the processing load of other network element, and also greatly being simplified alternately between cluster network element, is modeled into mutual between the disparate modules that is similar to same network element between cluster network element alternately.Visible, be conducive to improve disaster tolerance ability and the network entirety traffic handing capacity of the network equipment based on the present embodiment trunking communication mechanism.

Brief description of the drawings

In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.

Fig. 1 is the schematic flow sheet of IP communication means between a kind of cluster network element of providing of the embodiment of the present invention;

Fig. 2 is the schematic flow sheet of IP communication means between the another kind of cluster network element that provides of the embodiment of the present invention;

Fig. 3 is the schematic flow sheet of IP communication means between the another kind of cluster network element that provides of the embodiment of the present invention;

Fig. 4-a is a kind of RNC aggregated structure schematic diagram that the embodiment of the present invention provides;

Fig. 4-b is the another kind of RNC aggregated structure schematic diagram that the embodiment of the present invention provides;

Fig. 4-c is the protocol stack schematic diagram of Iur-w interface between a kind of RNC of providing of the embodiment of the present invention;

Fig. 4-d is the protocol stack schematic diagram of Iur-w interface between the another kind of RNC that provides of the embodiment of the present invention;

Fig. 5 is the schematic flow sheet of IP communication means between the another kind of cluster network element that provides of the embodiment of the present invention;

Fig. 6 is the schematic flow sheet of IP communication means between the another kind of cluster network element that provides of the embodiment of the present invention;

Fig. 7-a is a kind of network element structural representation that the embodiment of the present invention provides;

Fig. 7-b is the another kind of network element structural representation that the embodiment of the present invention provides;

Fig. 8 is the another kind of network element structural representation that the embodiment of the present invention provides;

Fig. 9 is a kind of communication system architecture schematic diagram that the embodiment of the present invention provides.

Embodiment

Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiment.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.

Below be elaborated respectively.

An embodiment of Internet protocol (IP, Internet Protocol) communication means between a kind of cluster network element of the present invention, the method can comprise:

At least one transport layer tunnel between the first network element foundation and the second network element; Wherein, the first network element and the second network element belong to same cluster; If the second network element meets transfer processing condition, the chain of command message of processing to be transferred or user face data are encapsulated as the wherein corresponding transport layer message in transport layer tunnel in above-mentioned at least one transport layer tunnel by the first network element; This transport layer message is encapsulated as to this wherein corresponding IP message in transport layer tunnel; This IP message is encapsulated as to Frame; The first network element sends this Frame to the second network element.

Referring to Fig. 1, between a kind of cluster network element that the embodiment of the present invention provides, IP communication means can comprise:

101, at least one transport layer tunnel between the first network element foundation and the second network element;

Wherein, the first network element and the second network element belong to same cluster, and the network element of this same cluster can share a signalling point and/or share a network element ID.

In a kind of feasible execution mode, such as webmaster (or other network element) is if can such as, be constructed as a cluster by the network element of the individual same type of the same area (Mobility Management Entity, RNC etc.), if the network element of the individual same type of the same area is joined in this cluster, and can be this cluster allocation set group identification.Webmaster can be on the network element that adds cluster the information of other network element in allocation cluster, can know to make the each network element in cluster which network element this cluster also comprises, or each network element in same cluster also can know which network element this cluster also comprises by broadcast or synchronization mechanism.

So, the first network element can know that itself and the second network element belong to same cluster, the first network element can initiatively be initiated the transport layer tunnel between foundation and the second network element, certainly, the first network element also can initiatively be initiated the transport layer tunnel between foundation and other network element, and the second network element or other network element equally also can initiatively be initiated the transport layer tunnel between foundation and the first network element or other network element of cluster.

If 102 second network elements meet transfer processing condition, the chain of command message of processing to be transferred or user face data are encapsulated as the wherein corresponding transport layer message in transport layer tunnel in above-mentioned at least one transport layer tunnel by the first network element; This transport layer message is encapsulated as to this wherein corresponding IP message in transport layer tunnel; This IP message is encapsulated as to Frame;

103, the first network element sends this Frame to the second network element.

Wherein, receiving after the Frame from the first network element in the second network element of same cluster with the first network element; Can obtain IP message by this Frame of decapsulation; This IP message of decapsulation obtains transport layer message; Controlled message of this transport layer message of decapsulation or user face data; The second network element can be processed this chain of command message or user face data.So, between the first network element in same cluster and the second network element, just realize the processing load sharing of chain of command message or user face data, between cluster network element, be modeled into alternately mutual between the disparate modules that is similar to same network element, interactive efficiency is relatively high, if and the first network element of same cluster and signalling point of the second network-element share and/or a shared network element ID, the each network element of same like this cluster externally presents the feature of same network element, communication complexity between other network element and cluster network element can not increase, and can be without the non-cluster network element in upgrading network.

Therefore, at least one transport layer tunnel between the first network element foundation in the present embodiment cluster and the second network element of same cluster, if the second network element meets transfer processing condition, the first network element can be encapsulated as the wherein corresponding transport layer message in transport layer tunnel in this at least one transport layer tunnel by the chain of command message of processing to be transferred or user face data; This transport layer message is encapsulated as to this wherein corresponding IP message in transport layer tunnel; This IP message is encapsulated as to Frame; The first network element sends this Frame to the second network element, and this receives the second network element and processes and shift chain of command message or user's face number of coming.Based on above-mentioned mechanism, between the network element of same cluster, can transmit chain of command message or the user face data of processing to be transferred in the transport layer tunnel based on setting up, the network element of same like this cluster not only can be shared the processing load of other network element, and also greatly being simplified alternately between cluster network element, is modeled into mutual between the disparate modules that is similar to same network element between cluster network element alternately.Visible, be conducive to improve disaster tolerance ability and the network entirety traffic handing capacity of the network equipment based on the present embodiment trunking communication mechanism.In addition, if signalling point of the network-element share of same cluster and/or a shared network element ID, each network element of same like this cluster externally presents the feature of same network element, communication complexity between other network element and cluster network element does not increase, and can, without the non-cluster network element in upgrading network, also control to a certain extent the cost of scheme implementation.

Another embodiment of IP communication means between cluster network element of the present invention, the method can comprise:

At least one transport layer tunnel between the second network element foundation and the first network element; Wherein, the first network element and the second network element belong to same cluster; If the second network element receives the Frame from the first network element, and this Frame of decapsulation obtains the wherein corresponding IP message in transport layer tunnel in above-mentioned at least one transport layer tunnel; This IP message of decapsulation obtains this wherein corresponding transport layer message in transport layer tunnel; Controlled message of this transport layer message of decapsulation or user face data; The second network element is processed this chain of command message or user face data.

Between the another kind of cluster network element providing referring to Fig. 2, the embodiment of the present invention, IP communication means can comprise:

201, at least one transport layer tunnel between the second network element foundation and the first network element;

So, the second network element can know that itself and the first network element belong to same cluster, the second network element can initiatively be initiated the transport layer tunnel between foundation and the first network element, certainly, the second network element also can initiatively be initiated the transport layer tunnel between foundation and other network element, and the first network element or other network element equally also can initiatively be initiated the transport layer tunnel between foundation and the second network element or other network element of cluster.

202, the second network element receives the Frame from the first network element;

203, this Frame that the second network element decapsulation receives obtains the wherein corresponding IP message in transport layer tunnel in above-mentioned at least one transport layer tunnel; This IP message of decapsulation obtains this wherein corresponding transport layer message in transport layer tunnel; Controlled message of this transport layer message of decapsulation or user face data;

204, the second network element processing obtains chain of command message or user face data.

Wherein, the second network element can return to the result of chain of command message or user face data the first network element or send to upstream or downstream network element.

So, between the first network element in same cluster and the second network element, just realize the processing load sharing of chain of command message or user face data, between cluster network element, be modeled into alternately mutual between the disparate modules that is similar to same network element, interactive efficiency is relatively high; And if the first network element of same cluster and signalling point of the second network-element share/or share a network element ID, the external like this feature that presents same network element, communication complexity between other network element and cluster network element can not increase, and can be without the non-cluster network element in upgrading network.

Therefore, at least one transport layer tunnel between the second network element foundation and first network element of the present embodiment cluster; The second network element receives after the Frame from the first network element; This Frame of decapsulation obtains the wherein transport layer tunnel corresponding Internet protocol IP message in above-mentioned at least one transport layer tunnel; A corresponding transport layer message in transport layer tunnel wherein described in this IP message of decapsulation obtains; Controlled message of this transport layer message of decapsulation or user face data; The second network element is processed this chain of command message or user face data based on above-mentioned mechanism, between the network element of same cluster, can transmit chain of command message or the user face data of processing to be transferred in the transport layer tunnel based on setting up, the network element of same like this cluster not only can be shared the processing load of other network element, and also greatly being simplified alternately between cluster network element, is modeled into mutual between the disparate modules that is similar to same network element between cluster network element alternately.Visible, be conducive to improve disaster tolerance ability and the network entirety traffic handing capacity of the network equipment based on the present embodiment trunking communication mechanism.

In addition, if signalling point of the network-element share of same cluster and/or a shared network element ID, each network element of same like this cluster externally presents the feature of same network element, communication complexity between other network element and cluster network element does not increase, and can, without the non-cluster network element in upgrading network, also control to a certain extent the cost of scheme implementation.

Also provide IP communication means between another kind of cluster network element to comprise referring to Fig. 3, the embodiment of the present invention:

301, at least one transport layer tunnel between the first network element foundation and the second network element;

Wherein, the first network element and the second network element belong to same cluster, the network element of this same cluster can share a signalling point/or share a network element ID.

Wherein, the first network element can set up and the second network element between multiple transport layer tunnel.

For instance, the first network element for example can be set up at least one SCTP (SCTP) tunnel and/or other existing transport layer protocol tunnel and/or the privately owned transport layer protocol tunnel between the second network element, to transmit chain of command message; In addition, the first network element also can set up and the second network element between at least one User Datagram Protocol (UDP) tunnel and/or transmission control protocol (TCP) tunnel and/or other existing transport layer protocol tunnel and/or privately owned transport layer protocol tunnel, with transmission user face data.

If 302 meet preset transfer processing condition, the first network element by the chain of command message of processing to be transferred or user face data be encapsulated as wherein transport layer tunnel in above-mentioned at least one transport layer tunnel (for example the first network element select transmission quality best (as packet loss and/or time delay minimum) or an inferior good or transport layer tunnel arbitrarily) corresponding transport layer message; This transport layer message is encapsulated as to this wherein corresponding IP message in transport layer tunnel; This IP message is encapsulated as to Frame;

In a kind of feasible execution mode, the first network element for example can be monitored in several ways the first network element place cluster and be comprised resources left ratio or the resource residual amount of the second network element at interior multiple network elements, for example the first network element can be periodic or acyclic monitoring the first network element place cluster in the resources left ratio of the multiple network elements including the second network element or resource residual amount (wherein, this resources left ratio or resource residual amount for example comprise load and/or Radio Resource and/or surplus etc. remaining proportion or the resource residual amount of transfer resource), or, each network element in cluster can be periodically or aperiodicity to other network element in cluster or near resources left ratio or the resource residual amount of network element circular self, or, each network element in cluster can be after the resources left ratio of self or resource residual amount variation, other network element or near network element in cluster are circulated a notice of resources left ratio or the resource residual amount after Self-variation.

Wherein, the first network element determines that the mode that the second network element meets transfer processing condition can comprise:

If current resources left ratio or the resource residual amount maximum of the second network element in multiple network elements of the first network element monitoring, and current resources left ratio or the resource residual amount of the first network element be less than setting threshold, determines that the second network element meets transfer processing condition; Or, if current resources left ratio or the resource residual amount maximum of the second network element in multiple network elements of the first network element monitoring, and the resources left ratio that the first network element is current or resource residual amount are less than the second network element current resources left ratio or resource residual amount, determine that the second network element meets transfer processing condition.Certainly, can also set other and be conducive to share the transfer processing condition that load makes the occupation condition of network element in cluster try one's best balanced.

Under a kind of application scenarios, if the first network element has been set up at least one SCTP tunnel between the second network element, if the second network element meets transfer processing condition, the first network element the chain of command message of processing to be transferred can be encapsulated as this at least one SCTP tunnel wherein SCTP tunnel (for example the first network element select transmission quality best (as packet loss and/or time delay minimum) or an inferior good or SCTP tunnel arbitrarily) corresponding SCTP packet; This SCTP packet is encapsulated as to this wherein corresponding IP message in SCTP tunnel; This IP message is encapsulated as to Frame.

If the first network element has been set up at least one UDP tunnel between the second network element, if the second network element meets transfer processing condition, the first network element by the user face data of processing to be transferred be encapsulated as at least one UDP tunnel wherein UDP tunnel (for example the first network element select transmission quality best (as packet loss and/or time delay minimum) or an inferior good or UDP tunnel arbitrarily) corresponding UDP message; UDP message is encapsulated as to a wherein corresponding IP message in UDP tunnel; This IP message is encapsulated as to Frame.

If the first network element has been set up at least one TCP tunnel between the second network element, if meet transfer processing condition, the first network element by the user face data of processing to be transferred be encapsulated as this at least one TCP tunnel wherein TCP tunnel (for example the first network element select transmission quality best (as packet loss and/or time delay minimum) or an inferior good or TCP tunnel arbitrarily) corresponding TCP message; This TCP message is encapsulated as to this wherein corresponding IP message in TCP tunnel; This IP message is encapsulated as to Frame.

In addition, can also the rule based on certain be sorted out by message, the message of for example corresponding same application module is as a class message.Can be by the message of different classification types hash between tunnel, of a sort message is selected identical tunnel, and inhomogeneous message is selected different tunnels.So, message mutual between two network elements in cluster just can be according to the difference of application module, selects different tunnels to carry out alternately.Two flows between network element interface can be shared on many tunnels, to increase two interface bandwidths between network element.Further, in order to make flow equalization between tunnel as far as possible, the rule of sorting out can be considered message can be tried one's best to uniform hashing to different tunnels as far as possible.In addition, in the time of a tunnel failure, as intermediate conveyor is interrupted.The originally message of the transmission on this tunnel, can reselect other available tunnel communication, to realize tunnel back mechanism, strengthens the reliability of interface.

Under a kind of application scenarios, if chain of command message is sorted out, and the first network element has been set up at least one SCTP tunnel (or other transport layer tunnel) between the second network element, the first network element can be determined in this at least one SCTP tunnel (or other transport layer tunnel) the SCTP tunnel (or other transport layer tunnel) corresponding with the classification type of the chain of command message of processing to be transferred, the chain of command message of this processing to be transferred is encapsulated as to the corresponding SCTP packet in SCTP tunnel (or other transport layer tunnel) (or other transport layer message) of determining, SCTP packet (or other transport layer message) is encapsulated as to the corresponding IP message in this SCTP tunnel of determining (or other transport layer tunnel), this IP message is encapsulated as to Frame,

If user face data is sorted out, and the first network element has been set up and the second network element between at least one UDP tunnel (or TCP tunnel or other transport layer tunnel), the first network element is determined in this at least one UDP tunnel (or TCP tunnel or other transport layer tunnel) the UDP tunnel (or TCP tunnel or other transport layer tunnel) corresponding with the classification type of the user face data of processing to be transferred, the user face data of this processing to be transferred is encapsulated as to the corresponding UDP message in UDP tunnel (or TCP tunnel or other transport layer tunnel) (or TCP message or other transport layer message) of determining, UDP message (or TCP message or other transport layer message) is encapsulated as to the corresponding IP message in this UDP tunnel of determining (or TCP tunnel or other transport layer tunnel), this IP message is encapsulated as to Frame.

303, the first network element sends this Frame to the second network element;

304, the second network element receives the Frame from the first network element;

305, second this Frame of network element decapsulation obtains the wherein transport layer tunnel corresponding Internet protocol IP message in above-mentioned at least one transport layer tunnel; This IP message of decapsulation obtains this wherein corresponding transport layer message in transport layer tunnel; Controlled message of this transport layer message of decapsulation or user face data;

306, the second network element is processed this chain of command message or user face data.

So, between the first network element in same cluster and the second network element, just realize the processing load sharing of chain of command message or user face data, if and the first network element of same cluster and signalling point of the second network-element share/or share a network element ID, the external like this feature that presents same network element, and other network element can not increase with the communication complexity between cluster network element and (communicates by letter between other network element and the each network element of cluster, be similar to the same with same net element communication), and can be without the non-cluster network element in upgrading network.

Therefore, at least one transport layer tunnel between the first network element foundation in the present embodiment cluster and the second network element of same cluster, if the second network element meets transfer processing condition, the first network element can be encapsulated as the wherein corresponding transport layer message in transport layer tunnel in this at least one transport layer tunnel by the chain of command message of processing to be transferred or user face data; This transport layer message is encapsulated as to this wherein corresponding IP message in transport layer tunnel; This IP message is encapsulated as to Frame; The first network element sends this Frame to the second network element, and this makes the second network element to receive and to process and shifts chain of command message or user's face number of coming.Based on above-mentioned mechanism, between the network element of same cluster, can transmit chain of command message or the user face data of processing to be transferred in the transport layer tunnel based on setting up, the network element of same like this cluster not only can be shared the processing load of other network element, and also greatly being simplified alternately between cluster network element, is modeled into mutual between the disparate modules that is similar to same network element between cluster network element alternately.Visible, be conducive to improve disaster tolerance ability and the network entirety traffic handing capacity of the network equipment based on the present embodiment trunking communication mechanism.

For ease of better understanding and implement the technical scheme of the embodiment of the present invention, with multiple RNC composition RNC clusters, in RNC cluster, a kind of IP communication process of RNC is that example is introduced below.Referring to Fig. 4-a and Fig. 4-b, between the cluster network element of the present embodiment, IP communication means can carry out concrete enforcement based on the network architecture as shown in Fig. 4-a or Fig. 4-b.

Between the another kind of cluster network element providing referring to Fig. 5, the embodiment of the present invention, IP communication means can comprise:

501, between the each RNC in RNC cluster, set up at least one SCTP tunnel;

Wherein, the RNC of same RNC cluster can share a signalling point and/or share a RNC mark.

In a kind of feasible execution mode, for example webmaster (or other network element) is if can be constructed as a RNC cluster by the individual RNC of the same area, if the individual identical RNC of the same area is joined in this cluster, and can be this RNC cluster distribution RNC cluster identity.Webmaster can be on the RNC that adds RNC cluster the information of other RNC in allocation cluster, can know to make the each RNC in RNC cluster which RNC this cluster also comprises, or each RNC in same RNC cluster also can know this RNC cluster also comprises other which RNC by broadcast or synchronization mechanism.

For example Fig. 4-a and Fig. 4-b, Iur-W interface based on newly expanding between each RNC of the present embodiment RNC cluster communicates, wherein, the protocol stack model of Iur-W interface can Fig. 4-c and Fig. 4-d shown in, can comprise application layer, SCTP tunnel layer/UDP tunnel layer, IP layer, data link layer (Data Link Layer) and physical layer (Physical Layer).

Simply introduce the protocol stack model of Iur-W interface below:

SCTP tunnel (Tunnel) layer:

Based on Stream Control Transmission Protocol, adopt tunnel style to complete the conversion between upper strata chain of command message and SCTP packet.

UDP Tunnel layer:

Based on udp protocol, adopt tunnel style to complete the conversion between upper-layer user's face data and UDP datagram.

IP layer:

The main agreement of network layer, IP agreement provides global unified message format-IP datagram, has shielded data link layer difference, makes the network interconnection become possibility.

Data Link Layer (data link layer):

In ICP/IP protocol stack, being positioned at the second layer, on physical layer (Physical Layer) basis, providing service to network layer (IP layer), is mainly to provide reliable transfer of data for physical link.

Physical Layer (physical layer):

IP agreement can be applied on different network transmission technologies, and physical layer provides various physical connection mode.

Compared with Iur interface, Iur-W interface does not have wireless network layer, and the transport network layer of chain of command is also simplified than Iur protocol stack of the interface.Chain of command does not re-use SS7 protocol stack, makes the RNC of cluster can share signalling point, thereby realizes the load sharing of chain of command message in cluster.

Two RNC that connect at Iur-W configure behind chain of command SCTP tunnel, and two RNC are according to the Stream Control Transmission Protocol link setup of holding consultation.The success of SCTP link setup, after two ends communication is normal, the chain of command tunnel of two RNC has just been successfully established.

Suppose that each RNC in RNC cluster comprises the processing module of the protocal layers of corresponding Iur-W protocol stack of the interface, for example application layer module (APP Module), transport layer tunnel module (SCTP tunnel layer module/UDP tunnel layer module), IP layer module, Data Link Layer Module and physical layer block below.

Carrying out IP taking the RNC-1 in RNC cluster and other RNC below communicates by letter as example.

502, the chain of command application module of RNC-1 is assembled the chain of command message of processing to be transferred, and this chain of command message is sent to SCTP tunnel layer module;

Wherein, if certain RNC (can claim RNC-2) meets transfer processing condition, the chain of command application module of RNC-1 can be assembled the chain of command message (such as user's call signaling etc.) of transfer processing, to prepare this chain of command message transfers to other RNC assist process in same RNC cluster.Wherein, mark (as object IP address) of the mark (as the IP address of RNC-1, i.e. source IP address) of the chain of command message portability RNC-1 of processing to be transferred, object RNC etc.

In a kind of feasible execution mode, RNC-1 for example can monitor resources left ratio or the resource residual amount of the multiple network elements in the cluster of RNC-1 place in several ways, for example RNC-1 can be periodic or acyclic monitoring RNC-1 place cluster in the resources left ratio of multiple network elements or resource residual amount (wherein, this resources left ratio or resource residual amount for example comprise load and/or Radio Resource and/or surplus etc. remaining proportion or the resource residual amount of transfer resource), or, each RNC in cluster can be periodically or aperiodicity to other RNC in cluster or near resources left ratio or the resource residual amount of RNC circular self, or, each RNC in cluster can be after the resources left ratio of self or resource residual amount variation, other RNC or near RNC in cluster circulate a notice of resources left ratio or the resource residual amount after Self-variation, RNC-1 can be known resources left ratio or the resource residual amount of each RNC in cluster accordingly.

Wherein, RNC-1 determines that the mode that RNC-2 meets transfer processing condition for example can comprise:

Current resources left ratio or the resource residual amount maximum of RNC-2 in multiple RNC of RNC-1 monitoring, and the resources left ratio that RNC-1 is current or resource residual amount are less than setting threshold, and (RNC-2 may have the resource that RNC-1 does not have, for example RNC-2 has and is connected with certain core net, and RNC-1 does not have); Or, current resources left ratio or the resource residual amount maximum of RNC-2 in the plurality of RNC, and the resources left ratio that RNC-1 is current or resource residual amount are less than RNC-2 current resources left ratio or resource residual amount, certainly, other can also be set and be conducive to share the transfer processing condition that load makes the occupation condition of RNC in cluster try one's best balanced.

If RNC-2 is current meets transfer processing condition, RNC-1 determines the chain of command message transfers of processing to be transferred is processed to the RNC-2 in RNC cluster.Wherein, suppose to have set up between RNC-1 and RNC-2 at least one SCTP tunnel.

503, the SCTP tunnel layer module of RNC-1 is encapsulated as the chain of command message of processing to be transferred the wherein corresponding SCTP packet in SCTP tunnel at least one SCTP tunnel of having set up between RNC-1 and RNC-2, this SCTP packet is encapsulated as to a wherein corresponding IP message in SCTP tunnel, this IP message is sent to IP layer module;

Wherein, the source port number of this SCTP packet and destination slogan, identical with destination slogan with this source port number that wherein SCTP tunnel is corresponding, in the load of this SCTP packet, comprise the chain of command message of processing to be transferred; The source IP of this IP message and object IP are identical with object IP with this source IP that wherein SCTP tunnel is corresponding.

Under a kind of application scenarios, if set up many SCTP tunnels between RNC-1 and RNC-2, can select any one or adopt load sharing algorithm to select a best SCTP tunnel of current transmission quality, make chain of command message share transmission on many SCTP tunnels, to obtain the effect of load balancing.When after a certain SCTP tunnel chain rupture, between RNC-1 and RNC-2, can also use other SCTP tunnel transmission data, between two RNC, communication can not interrupted.

Under another kind of application scenarios, also can the rule based on certain be sorted out by message, the message of for example corresponding same application module is as a class message.Can be by the message of different classification types hash between tunnel, of a sort message is selected identical tunnel, and inhomogeneous message is selected different tunnels.So, message mutual between two RNC just can be according to the difference of application module, selects different tunnels to carry out alternately.Two flows between RNC interface can be shared on many tunnels, to increase the bandwidth of interface.Further, in order to make flow equalization between tunnel as far as possible, the rule of sorting out can be considered message can be tried one's best to uniform hashing to different tunnels as far as possible.In addition, in the time of a tunnel failure, as intermediate conveyor is interrupted.The originally message of the transmission on this tunnel, can reselect other available tunnel communication, to realize tunnel back mechanism, strengthens the reliability of interface.

Under another kind of application scenarios, if chain of command message is sorted out, and RNC-1 sets up at least one SCTP tunnel between RNC-2, RNC can determine in this at least one SCTP tunnel the SCTP tunnel corresponding with the classification type of the chain of command message of processing to be transferred, and SCTP tunnel layer module can be encapsulated as the chain of command message of this processing to be transferred the corresponding SCTP packet in SCTP tunnel of determining.

504, the IP layer module searches of RNC-1, out from routing iinformation (comprising the information such as MAC Address) corresponding to the IP message of SCTP tunnel layer module, sends to this IP message and the routing iinformation finding the Data Link Layer Module of RNC-1;

IP layer module also can be to carrying out Fragmentation from the IP message of SCTP tunnel layer module.

505, the Data Link Layer Module of RNC-1 according to IP layer module searches to corresponding routing iinformation this IP message is encapsulated as to Frame, and this Frame is sent to physical layer block;

The physical layer block of RNC-1 sends Frame by the physical connection between RNC-1 and RNC-2 to RNC-2;

Wherein, the Frame of Data Link Layer Module encapsulation provides error detection, mechanism for correcting errors, to ensure the reliability of transfer of data.

In actual applications, if upper-layer protocol message long (exceeding length restriction), lower-layer protocols module can be cut apart formation burst to it; If the long length restriction that do not exceed of upper-layer protocol, lower-layer protocols module can not cut apart.Upper-layer protocol message or its burst be as the payload of lower-layer protocols encapsulation, transfers to lower lower-layer protocols resume module after according to fixed format packed.

506, the physical layer block of RNC-2 receives the Frame from RNC-1, and this Frame receiving is sent to Data Link Layer Module;

507, the Frame that the Data Link Layer Module of RNC-2 receives physical layer block carries out verification and distribution, if its carrying is IP message, this Frame of decapsulation obtains IP message, the IP message obtaining is sent to the IP layer module of RNC-2;

508, the IP layer module of RNC-2 receives after the IP message from Data Link Layer Module, resolves the transport layer protocol that this IP message is corresponding, due to the carrying of this IP message be SCTP packet, this IP message is sent to SCTP tunnel layer module by IP layer module;

In addition, IP layer module also can as required, be combined into an IP message by the indication information carrying in IP heading multiple IP messages (heading is identical), for upper-layer protocol resume module;

509, the SCTP tunnel layer module decapsulation of RNC-2 obtains SCTP packet from the IP message of IP layer module, and controlled message of this SCTP packet of decapsulation, sends to corresponding chain of command application module processing by this chain of command message.

Wherein, RNC-2 can return to the result of chain of command message RNC-1 or send to upstream or downstream network element.

So, between RNC-1 in same cluster and RNC-2, just realize the processing load sharing of chain of command message, and the RNC-1 of same cluster and RNC-2 share a signalling point and/or a RNC mark, so the outer network element of cluster is presented the feature of same RNC, communication complexity between other network element and cluster RNC can not increase, and can be without the non-cluster network element in upgrading network.

In addition, after multiple RNC composition clusters, for realizing helping each other and sharing of resource, may interactive user data between cluster RNC.In the present embodiment, Iur-W user's face uses UDP tunnel transmission user data.Although Iur transport network layer also uses udp protocol, Iur interface use side slogan is that different users retains its data transmission channel separately.And user's face of Iur-W set up be UDP tunnel, UDP tunnel transmits user face data as common path, uses fixing port numbers communication, needn't distinguish different user, has reduced the complexity of user's face processing, has realized user face data and has transmitted across physics RNC.

Introduce a kind of application scenarios of each RNC interactive user face data in cluster RNC below.

Between the another kind of cluster network element providing referring to Fig. 6, the embodiment of the present invention, IP communication means can comprise:

601, between the each RNC in RNC cluster, set up at least one UDP tunnel;

Wherein, the RNC of same RNC cluster shares a signalling point and/or shares a RNC mark.

602, user's face application module of RNC-1 is assembled the user face data of processing to be transferred, and this user face data is sent to UDP tunnel layer module;

Wherein, if meet preset transfer processing condition, user's face chain of command application module of RNC-1 can be assembled the user face data of transfer processing, to prepare that this user face data is transferred to other RNC assist process in same RNC cluster.

Wherein, mark (as object IP address) of for example mark of portability RNC-1 (as the IP address of RNC-1, i.e. source IP address), object RNC etc. in the user face data of processing to be transferred.

Wherein, preset transfer processing condition for example can comprise:

Current resources left ratio or the resource residual amount maximum of certain RNC (can claim RNC-2) in multiple RNC of RNC-1 monitoring, and current resources left ratio or the resource residual amount of RNC-1 is less than setting threshold; Or, current resources left ratio or the resource residual amount maximum of RNC-2 in the plurality of RNC, and the resources left ratio that RNC-1 is current or resource residual amount are less than RNC-2 current resources left ratio or resource residual amount, certainly can also be that other is conducive to share the transfer processing condition that load makes the occupation condition of RNC in cluster try one's best balanced.

Meet transfer processing condition if RNC-2 is current, RNC-1 determines that the RNC-2 that the user face data of processing to be transferred is transferred in RNC cluster processes.Wherein, suppose to have set up between RNC-1 and RNC-2 at least one UDP tunnel.

603, the UDP tunnel layer module of RNC-1 is encapsulated as the user face data of processing to be transferred the wherein corresponding UDP message in UDP tunnel at least one UDP tunnel of having set up between RNC-1 and RNC-2; This UDP message is encapsulated as to this wherein corresponding IP message in UDP tunnel, this UDP message is sent to IP layer module;

Wherein, the source port number of this UDP message and destination slogan are identical with destination slogan with this source port number that wherein UDP tunnel is corresponding; The source IP of this IP message and object IP are identical with object IP with this source IP that wherein SCTP tunnel is corresponding.In the load of this UDP message, comprise the user face data of processing to be transferred.

Under a kind of application scenarios, if set up many UDP tunnels between RNC-1 and RNC-2, can select any one or adopt load sharing algorithm to select a best UDP tunnel of current transmission quality, make user face data share transmission on many UDP tunnels, to obtain the effect of load balancing.When after a certain UDP tunnel chain rupture, between RNC-1 and RNC-2, can also use other UDP tunnel transmission data, between two RNC, communication can not interrupted.

In addition, can also the rule based on certain be sorted out by message, for example the message of corresponding same user's face application module is as a class message.Can be by the message of different classification types hash between tunnel, of a sort message is selected identical tunnel, and inhomogeneous message is selected different tunnels.So, message mutual between two RNC just can be according to the difference of application module, selects different tunnels to carry out alternately.Two flows between RNC interface can be shared on many tunnels, to increase the bandwidth of interface.Further, in order to make flow equalization between tunnel as far as possible, the rule of sorting out can be considered message can be tried one's best to uniform hashing to different tunnels as far as possible.In addition, in the time of a tunnel failure, as intermediate conveyor is interrupted.The originally message of the transmission on this tunnel, can reselect other available tunnel communication, to realize tunnel back mechanism, strengthens the reliability of interface.

Under another kind of application scenarios, if user face data is sorted out, and RNC-1 sets up at least one UDP tunnel between RNC-2, RNC can determine in this at least one UDP tunnel the UDP tunnel corresponding with the classification type of the user face data of processing to be transferred, and UDP tunnel layer module can be encapsulated as the user face data of this processing to be transferred the corresponding UDP message in the UDP tunnel of determining.

604, the IP layer module searches of RNC-1, out from routing iinformation (comprising the information such as MAC Address) corresponding to the IP message of UDP tunnel layer module, sends to this IP message and the routing iinformation finding the Data Link Layer Module of RNC-1;

IP layer module also can be to carrying out Fragmentation from the IP message of SCTP tunnel layer module;

605, the Data Link Layer Module of RNC-1 according to IP layer module searches to corresponding routing iinformation this IP message is encapsulated as to Frame, and this Frame is sent to physical layer block;

606, the physical layer block of RNC-2 receives the Frame from RNC-1, and this Frame receiving is sent to Data Link Layer Module;

607, the Frame that the Data Link Layer Module of RNC-2 receives physical layer block carries out verification and distribution, if its carrying is IP message, this Frame of decapsulation obtains IP message, the IP message obtaining is sent to the IP layer module of RNC-2;

608, the IP layer module of RNC-2 receives after the IP message from Data Link Layer Module, resolves the transport layer protocol that this IP message is corresponding, due to the carrying of this IP message be UDP message, this IP message is sent to UDP tunnel layer module by IP layer module;

609, the UDP tunnel layer module decapsulation of RNC-2 obtains UDP message from the IP message of IP layer module, and this UDP message of decapsulation obtains user face data, and this user face data is sent to corresponding user's face application module processing.

Wherein, RNC-2 can return to the result of user face data RNC-1 or send to upstream or downstream network element.

It should be noted that, some function in the above-mentioned each module of RNC-1 and RNC-2 also can be separately by other or be integrated into other module and realize, multiple functional modules also can be merged into a functional module.

In addition, between RNC, not only can use SCTP tunnel and UDP tunnel, also can use such as TCP of other transport layer protocol etc. to set up tunnel, realize between cluster RNC control message and user data mutual.

So, between RNC-1 in same cluster and RNC-2, just realize the processing load sharing of user face data, and the RNC-1 of same cluster and RNC-2 share a signalling point and/or a RNC mark, so the outer network element of cluster is presented the feature of same RNC, communication complexity between other network element and cluster RNC can not increase, and can be without the non-cluster network element in upgrading network.

Therefore, at least one transport layer tunnel between the RNC foundation in the present embodiment RNC-1 cluster and other RNC of same cluster, if RNC-2 meets transfer processing condition, RNC-1 can be encapsulated as the wherein corresponding transport layer message in transport layer tunnel in this at least one transport layer tunnel by the chain of command message of processing to be transferred or user face data; This transport layer message is encapsulated as to this wherein corresponding IP message in transport layer tunnel; This IP message is encapsulated as to Frame; RNC-1 sends this Frame to RNC-2, and this makes RNC-2 to receive and to process and shifts chain of command message or user's face number of coming.Based on above-mentioned mechanism, between the RNC of same RNC cluster, can transmit chain of command message or the user face data of processing to be transferred in the transport layer tunnel based on setting up, the RNC of same like this RNC cluster not only can share the processing load of other RNC, and also greatly being simplified alternately between cluster RNC, is modeled into mutual between the disparate modules that is similar to same RNC between cluster RNC alternately.Visible, be conducive to improve disaster tolerance ability and the network entirety traffic handing capacity of the network equipment based on the present embodiment trunking communication mechanism.

In addition, if the RNC of same cluster shares a signalling point and/or shares a network element ID, each RNC of same like this cluster externally presents the feature of same RNC, communication complexity between other network element and cluster RNC does not increase, and can, without the non-cluster network element in upgrading network, also control to a certain extent the cost of scheme implementation.The present embodiment uses tunneling technique, realizes each application module in RNC cluster and carries out the mutual of chain of command message and user face data across physics RNC, thereby expand the system boundary of RNC and increased power system capacity; Between RNC, introduce new interface Iur-W, Iur-W interface is not limited by SS7 protocol stack, make the RNC in cluster can use identical signalling point, other network element can be shared at cluster internal loading to chain of command signaling or the user face data of cluster RNC, improve utilization rate of equipment and installations; And Iur-W interface does not have wireless network layer, only has transport network layer, protocol stack is simple compared with Iur interface, is conducive to improve the communication efficiency between RNC.

It should be noted that, for aforesaid each embodiment of the method, for simple description, therefore it is all expressed as to a series of combination of actions, but those skilled in the art should know, the present invention is not subject to the restriction of described sequence of movement, because according to the present invention, some step can adopt other orders or carry out simultaneously.Secondly, those skilled in the art also should know, the embodiment described in specification all belongs to preferred embodiment, and related action and module might not be that the present invention is necessary.

For ease of better implementing the such scheme of the embodiment of the present invention, be also provided for implementing the relevant apparatus of such scheme below.

Referring to Fig. 7-a, a kind of network element 700 that the embodiment of the present invention provides, can comprise:

Application layer module 720, transport layer tunnel module 710, IP layer module 730, Data Link Layer Module 740 and physical layer block 750.

Wherein, transport layer tunnel module 710, for setting up at least one transport layer tunnel between network element 700 and the second network element; Wherein, network element 700 and the second network element belong to same cluster, and the network element of this same cluster can share a signalling point and/or share a network element ID;

Application layer module 720, for assemble chain of command message or the user face data of processing to be transferred in the time that the second network element meets preset transfer processing condition, chain of command message or the user face data of the processing to be transferred of assembling are sent to transport layer tunnel module 720;

Transport layer tunnel module 720 also for, the chain of command message of the processing to be transferred that application layer module 710 is assembled or user face data are encapsulated as the wherein corresponding transport layer message in transport layer tunnel in above-mentioned at least one transport layer tunnel, this transport layer message is encapsulated as to this wherein transport layer tunnel corresponding Internet protocol IP message, this IP message is sent to IP layer module;

IP layer module 730, for searching the corresponding routing iinformation of IP message (comprising MAC Address etc.) from transport layer tunnel module 720, sends to Data Link Layer Module 740 by this IP message and routing iinformation corresponding to this IP message finding;

Data Link Layer Module 740, for being encapsulated as Frame according to routing iinformation corresponding to above-mentioned IP message by this IP message;

Physical layer block 750, for sending to the second network element the Frame that Data Link Layer Module 740 encapsulates.

Under a kind of application scenarios, transport layer tunnel module 710 can comprise: at least one in SCTP tunnel layer module, UDP tunnel layer module and TCP tunnel layer module.

Wherein, SCTP tunnel layer module, for setting up at least one SCTP SCTP tunnel between network element 700 and the second network element;

UDP tunnel layer module, for setting up at least one user datagram protocol UDP tunnel between network element 700 and the second network element;

TCP tunnel layer module, for setting up at least one transmission control protocol TCP tunnel between network element 700 and the second network element;

Under a kind of application scenarios, SCTP tunnel layer module specifically also can be used for, the chain of command message of the processing to be transferred that application layer module 710 is assembled is encapsulated as the wherein corresponding SCTP packet in SCTP tunnel in above-mentioned at least one SCTP tunnel, this SCTP packet is encapsulated as to this wherein corresponding IP message in SCTP tunnel, this IP message is sent to IP layer module;

Under a kind of application scenarios, UDP tunnel layer module specifically also can be used for, the user face data of the processing to be transferred that application layer module 710 is assembled is encapsulated as the wherein corresponding UDP message in UDP tunnel in above-mentioned at least one UDP tunnel, this UDP message is encapsulated as to this wherein corresponding IP message in UDP tunnel, this IP message is sent to IP layer module;

Under a kind of application scenarios, TCP tunnel layer module specifically also can be used for, the user face data of the processing to be transferred that described application layer module 710 is assembled is encapsulated as the wherein corresponding TCP message in TCP tunnel in above-mentioned at least one TCP tunnel, this TCP message is encapsulated as to this wherein corresponding IP message in TCP tunnel, this IP message is sent to IP layer module.

Under a kind of application scenarios, SCTP tunnel layer module can be specifically for, the chain of command message of the processing to be transferred that application layer module 710 is assembled is encapsulated as the corresponding SCTP packet in a best SCTP tunnel of transmission quality in above-mentioned at least one SCTP tunnel (or transmission quality is time good or the SCTP tunnel of any), this SCTP packet is encapsulated as to best IP message corresponding to a SCTP tunnel of this transmission quality, this IP message is sent to IP layer module 730;

Under another kind of application scenarios, SCTP tunnel layer module also can be specifically for, determine the SCTP tunnel corresponding to classification type of the chain of command message of the processing to be transferred of assembling with this application layer module 710 in above-mentioned at least one SCTP tunnel, this chain of command message is encapsulated as to the corresponding SCTP packet in SCTP tunnel of determining, this SCTP packet is encapsulated as to the IP message that this SCTP tunnel of determining is corresponding, this IP message is sent to IP layer module 730.

Under a kind of application scenarios, UDP tunnel layer module specifically for, the user face data of the processing to be transferred that application layer module 710 is assembled is encapsulated as the corresponding UDP message in a best UDP tunnel of transmission quality in above-mentioned at least one UDP tunnel (or transmission quality is time good or the UDP tunnel of any), this UDP message is encapsulated as to IP message corresponding to a best UDP tunnel of this transmission quality (or transmission quality time is good or the UDP tunnel of any), this IP message is sent to IP layer module 730.

Under another kind of application scenarios, UDP tunnel layer module specifically for, determine the UDP tunnel corresponding to classification type of the user face data of the processing to be transferred of assembling with application layer module 710 in above-mentioned at least one UDP tunnel, this user face data is encapsulated as to the corresponding UDP message in the UDP tunnel of determining, this UDP message is encapsulated as to the IP message that this UDP tunnel of determining is corresponding, this IP message is sent to IP layer module 730.

Under a kind of application scenarios, TCP tunnel layer module specifically for, the user face data of the processing to be transferred that application layer module 710 is assembled is encapsulated as the corresponding TCP message in a best TCP tunnel of transmission quality in above-mentioned at least one TCP tunnel (or transmission quality is time good or the TCP tunnel of any), this TCP message is encapsulated as to IP message corresponding to a best TCP tunnel of this transmission quality (or transmission quality time is good or the TCP tunnel of any), this IP message is sent to IP layer module 730.

Under another kind of application scenarios, TCP tunnel layer module specifically for, determine the TCP tunnel corresponding to classification type of the user face data of the processing to be transferred of assembling with application layer module 710 in above-mentioned at least one TCP tunnel, this user face data is encapsulated as to the corresponding TCP message in the TCP tunnel of determining, this TCP message is encapsulated as to the IP message that this TCP tunnel of determining is corresponding, this IP message is sent to IP layer module 730.

Referring to Fig. 7-b, under a kind of application scenarios, network element 700 also can comprise:

Monitoring modular 760, for monitoring resources left ratio or the resource residual amount of the multiple network elements including the second network element of network element 700 place clusters;

Application layer module 710 or other module determine that the concrete mode that the second network element meets transfer processing condition can comprise: if current resources left ratio or the resource residual amount maximum of the second network element in multiple network elements that monitoring modular 760 is monitored, and the current resources left ratio of network element 700 or resource residual amount are less than setting threshold, determine that the second network element meets transfer processing condition; Or, if resources left ratio or resource residual amount maximum that the second network element in multiple network elements that monitoring modular 760 is monitored is current, and the current resources left ratio of network element 700 or resource residual amount are less than the second network element current resources left ratio or resource residual amount, determine that the second network element meets transfer processing condition.

Under a kind of application scenarios, network element 700 and the second network element are radio network controller (RNC) (or MME or base station or other network element), and network element 700 and the second network element belong to same RNC cluster (or MME or base station or other network element cluster).

If network element 700 and the second network element are radio network controller (RNC), network element 700 and the second network element can pass through Iur-w interface inter-link.

It should be noted that, some function in above-mentioned each module of network element 700 also can be separately by other or be integrated into other module and realize, multiple functional modules also can be merged into a functional module.

Be understandable that, network element 700 in the present embodiment and the second network element can be as the RNC in above-mentioned embodiment of the method or other cluster network elements, the function of its each functional module can be according to the method specific implementation in said method embodiment, its specific implementation process can, with reference to the associated description of said method embodiment, repeat no more herein.

Therefore, at least one transport layer tunnel between network element 700 foundation in the present embodiment cluster and the second network element of same cluster, if the second network element meets transfer processing condition, network element 700 can be encapsulated as the wherein corresponding transport layer message in transport layer tunnel in this at least one transport layer tunnel by the chain of command message of processing to be transferred or user face data; This transport layer message is encapsulated as to this wherein corresponding IP message in transport layer tunnel; This IP message is encapsulated as to Frame; Network element 700 sends this Frame to the second network element, and this makes the second network element to receive and to process and shifts chain of command message or user's face number of coming.Based on above-mentioned mechanism, between the network element of same cluster, can transmit chain of command message or the user face data of processing to be transferred in the transport layer tunnel based on setting up, the network element of same like this cluster not only can be shared the processing load of other network element, and also greatly being simplified alternately between cluster network element, is modeled into mutual between the disparate modules that is similar to same network element between cluster network element alternately.Visible, be conducive to improve disaster tolerance ability and the network entirety traffic handing capacity of the network equipment based on the present embodiment trunking communication mechanism.

Provide a kind of network element 800 referring to Fig. 8, the embodiment of the present invention, comprising:

Transport layer tunnel module 810, physical layer block 820, Data Link Layer Module 830, IP layer module 840 and application layer module 850.

Wherein, transport layer tunnel module 810, for setting up at least one transport layer tunnel between network element 800 and the first network element;

Wherein, the first network element and network element 800 belong to same cluster, signalling point of network-element share of this same cluster and/or a shared network element ID.

Physical layer block 820, for receiving the Frame from the first network element;

Data Link Layer Module 830, the Frame receiving for decapsulation physical layer block 820 obtains the wherein corresponding IP message in transport layer tunnel in above-mentioned at least one transport layer tunnel, and this IP message is mail to IP layer module;

IP layer module 840, for determining that the transport layer tunnel module corresponding to this transport layer protocol type sends this IP message from the transport layer protocol type corresponding to transport layer message of the IP message carrying of Data Link Layer Module 830;

Transport layer tunnel module 810 also for, decapsulation obtains an above-mentioned wherein corresponding transport layer message in transport layer tunnel from the IP message of IP layer module 840; Controlled message of this transport layer message of decapsulation or user face data, mail to corresponding application layer module by this chain of command message or user face data.

Application layer module 850, for the treatment of chain of command message or user face data from transport layer tunnel module 810.

Under a kind of application scenarios, network element 800 and the first network element are radio network controller (RNC) (or MME or base station or other network element), and network element 800 and the first network element belong to same RNC cluster (or MME or base station or other network element cluster).

If network element 800 and the first network element are radio network controller (RNC), network element 800 and the first network element can pass through Iur-w interface inter-link.

It should be noted that, some function in above-mentioned each module of network element 800 also can be separately by other or be integrated into other module and realize, multiple functional modules also can be merged into a functional module.

Be understandable that, network element 800 in the present embodiment and the first network element can be as the RNC in above-mentioned embodiment of the method or other cluster network elements, the function of its each functional module can be according to the method specific implementation in said method embodiment, its specific implementation process can, with reference to the associated description of said method embodiment, repeat no more herein.

Therefore, at least one transport layer tunnel between network element 800 foundation and first network element of the present embodiment cluster; Network element 800 receives after the Frame from the first network element; This Frame of decapsulation obtains the wherein transport layer tunnel corresponding Internet protocol IP message in above-mentioned at least one transport layer tunnel; A corresponding transport layer message in transport layer tunnel wherein described in this IP message of decapsulation obtains; Controlled message of this transport layer message of decapsulation or user face data; Network element 800 these chain of command message of processing or user face data are based on above-mentioned mechanism, between the network element of same cluster, can transmit chain of command message or the user face data of processing to be transferred in the transport layer tunnel based on setting up, the network element of same like this cluster not only can be shared the processing load of other network element, and also greatly being simplified alternately between cluster network element, is modeled into mutual between the disparate modules that is similar to same network element between cluster network element alternately.Visible, be conducive to improve disaster tolerance ability and the network entirety traffic handing capacity of the network equipment based on the present embodiment trunking communication mechanism.

The embodiment of the present invention also provides a kind of communication system, can comprise:

Network element 700 and/or network element 800.

Referring to Fig. 9, the embodiment of the present invention also provides a kind of communication system, can comprise:

The first network element 910 and with the second network element 920.

The first network element 910, for set up and the second network element between at least one transport layer tunnel; The first network element 910 and the second network element 920 belong to same cluster; If the second network element 920 meets transfer processing condition, the chain of command message of processing to be transferred or user face data are encapsulated as to the wherein corresponding transport layer message in transport layer tunnel in above-mentioned at least one transport layer tunnel; This transport layer message is encapsulated as to this wherein transport layer tunnel corresponding Internet protocol IP message; Described IP message is encapsulated as to Frame; Send described Frame to the second network element;

The second network element 920, if for receiving the Frame from the first network element 910, and described in decapsulation, Frame obtains the wherein corresponding IP message in transport layer tunnel in above-mentioned at least one transport layer tunnel; This IP message of decapsulation obtains this wherein corresponding transport layer message in transport layer tunnel; Controlled message of this transport layer message of decapsulation or user face data; Process this chain of command message or user face data.

For instance, the first network element 910 for example can be set up at least one SCTP (SCTP) tunnel and/or other existing transport layer protocol tunnel and/or the privately owned transport layer protocol tunnel between the second network element 920, to transmit chain of command message; In addition, the first network element 910 also can set up and the second network element 920 between at least one User Datagram Protocol (UDP) tunnel and/or transmission control protocol (TCP) tunnel and/or other existing transport layer protocol tunnel and/or privately owned transport layer protocol tunnel, with transmission user face data.

In a kind of feasible execution mode, the first network element 910 for example can be monitored in several ways the first network element 910 place clusters and be comprised resources left ratio or the resource residual amount of the second network element 920 at interior multiple network elements, for example the first network element 910 can be periodic or acyclic monitoring the first network element 910 place clusters in the resources left ratio of the multiple network elements including the second network element 920 or resource residual amount (wherein, this resources left ratio or resource residual amount for example comprise load and/or Radio Resource and/or surplus etc. remaining proportion or the resource residual amount of transfer resource), or, each network element in cluster can be periodically or aperiodicity to other network element in cluster or near resources left ratio or the resource residual amount of network element circular self, or, each network element in cluster can be after the resources left ratio of self or resource residual amount variation, other network element or near network element in cluster are circulated a notice of resources left ratio or the resource residual amount after Self-variation.

Wherein, the mode that definite the second network element 920 of the first network element 910 meets transfer processing condition can comprise:

If resources left ratio or resource residual amount maximum that the second network element 920 in multiple network elements that the first network element 910 is monitored is current, and current resources left ratio or the resource residual amount of the first network element 910 is less than setting threshold, determine that the second network element 920 meets transfer processing condition; Or, if resources left ratio or resource residual amount maximum that the second network element 920 in multiple network elements that the first network element 910 is monitored is current, and the resources left ratio that the first network element 910 is current or resource residual amount are less than the second network element 920 current resources left ratio or resource residual amount, determine that the second network element 920 meets transfer processing condition.

Certainly, can also set other and be conducive to share the transfer processing condition that load makes the occupation condition of network element in cluster try one's best balanced.

Under a kind of application scenarios, if the first network element 910 has been set up at least one SCTP tunnel between the second network element 920, if the second network element 920 meets transfer processing condition, the first network element 910 the chain of command message of processing to be transferred can be encapsulated as this at least one SCTP tunnel wherein SCTP tunnel (for example the first network element 910 select transmission quality best (as packet loss and/or time delay minimum) or an inferior good or SCTP tunnel arbitrarily) corresponding SCTP packet; This SCTP packet is encapsulated as to this wherein corresponding IP message in SCTP tunnel; This IP message is encapsulated as to Frame.

If the first network element 910 has been set up at least one UDP tunnel between the second network element 920, if the second network element 920 meets transfer processing condition, the first network element 910 by the user face data of processing to be transferred be encapsulated as at least one UDP tunnel wherein UDP tunnel (for example the first network element 910 select transmission quality best (as packet loss and/or time delay minimum) or an inferior good or UDP tunnel arbitrarily) corresponding UDP message; UDP message is encapsulated as to a wherein corresponding IP message in UDP tunnel; This IP message is encapsulated as to Frame.

If the first network element 910 has been set up at least one TCP tunnel between the second network element 920, if meet transfer processing condition, the first network element 910 by the user face data of processing to be transferred be encapsulated as this at least one TCP tunnel wherein TCP tunnel (for example the first network element 910 select transmission quality best (as packet loss and/or time delay minimum) or an inferior good or TCP tunnel arbitrarily) corresponding TCP message; This TCP message is encapsulated as to this wherein corresponding IP message in TCP tunnel; This IP message is encapsulated as to Frame.

Under a kind of application scenarios, if chain of command message is sorted out, and the first network element 910 has been set up at least one SCTP tunnel (or other transport layer tunnel) between the second network element 920, the first network element 910 can be determined in this at least one SCTP tunnel (or other transport layer tunnel) the SCTP tunnel (or other transport layer tunnel) corresponding with the classification type of the chain of command message of processing to be transferred, the chain of command message of this processing to be transferred is encapsulated as to the corresponding SCTP packet in SCTP tunnel (or other transport layer tunnel) (or other transport layer message) of determining, SCTP packet (or other transport layer message) is encapsulated as to the corresponding IP message in this SCTP tunnel of determining (or other transport layer tunnel), this IP message is encapsulated as to Frame,

If user face data is sorted out, and the first network element 910 has been set up and the second network element 920 between at least one UDP tunnel (or TCP tunnel or other transport layer tunnel), the first network element 910 is determined in this at least one UDP tunnel (or TCP tunnel or other transport layer tunnel) the UDP tunnel (or TCP tunnel or other transport layer tunnel) corresponding with the classification type of the user face data of processing to be transferred, the user face data of this processing to be transferred is encapsulated as to the corresponding UDP message in UDP tunnel (or TCP tunnel or other transport layer tunnel) (or TCP message or other transport layer message) of determining, UDP message (or TCP message or other transport layer message) is encapsulated as to the corresponding IP message in this UDP tunnel of determining (or TCP tunnel or other transport layer tunnel), this IP message is encapsulated as to Frame.

In the above-described embodiments, the description of each embodiment is all emphasized particularly on different fields, in certain embodiment, there is no the part of detailed description, can be referring to the associated description of other embodiment.

To sum up, at least one transport layer tunnel between the first network element foundation in embodiment of the present invention cluster and the second network element of same cluster, if the second network element meets transfer processing condition, the first network element can be encapsulated as the wherein corresponding transport layer message in transport layer tunnel in this at least one transport layer tunnel by the chain of command message of processing to be transferred or user face data; This transport layer message is encapsulated as to this wherein corresponding IP message in transport layer tunnel; This IP message is encapsulated as to Frame; The first network element sends this Frame to the second network element, and this makes the second network element to receive and to process and shifts chain of command message or user's face number of coming.Based on above-mentioned mechanism, between the network element of same cluster, can transmit chain of command message or the user face data of processing to be transferred in the transport layer tunnel based on setting up, the network element of same like this cluster not only can be shared the processing load of other network element, and also greatly being simplified alternately between cluster network element, is modeled into mutual between the disparate modules that is similar to same network element between cluster network element alternately.Visible, be conducive to improve disaster tolerance ability and the network entirety traffic handing capacity of the network equipment based on the present embodiment trunking communication mechanism.

One of ordinary skill in the art will appreciate that all or part of step in the whole bag of tricks of above-described embodiment is can carry out the hardware that instruction is relevant by program to complete, this program can be stored in a computer-readable recording medium, and storage medium can comprise: read-only memory, random asccess memory, disk or CD etc.

Between the cluster network element above embodiment of the present invention being provided, IP communication means and relevant apparatus and communication system are described in detail, applied specific case herein principle of the present invention and execution mode are set forth, the explanation of above embodiment is just for helping to understand method of the present invention and core concept thereof; , for one of ordinary skill in the art, according to thought of the present invention, all will change in specific embodiments and applications, to sum up, this description should not be construed as limitation of the present invention meanwhile.

Claims

1. an Internet protocol IP communication means between cluster network element, is characterized in that, comprising:

At least one transport layer tunnel between the first network element foundation and the second network element; Wherein, described the first network element and the second network element belong to same cluster, and described the first network element comprises radio network controller (RNC), and described the second network element comprises radio network controller (RNC);

The first network element sends described Frame to the second network element;

Wherein, the first network element determines that the mode that the second network element meets transfer processing condition comprises:

If the resources left ratio that the second network element in multiple network elements is current or resource residual amount maximum, and current resources left ratio or the resource residual amount of the first network element be less than setting threshold, determines that the second network element meets transfer processing condition; Or, if resources left ratio or resource residual amount maximum that the second network element in described multiple network element is current, and the resources left ratio that the first network element is current or resource residual amount are less than the second network element current resources left ratio or resource residual amount, determine that the second network element meets transfer processing condition.

2. method according to claim 1, is characterized in that,

Signalling point of network-element share of described same cluster and/or a shared network element ID.

3. method according to claim 1, is characterized in that, at least one transport layer tunnel between the first network element foundation and the second network element, comprising:

At least one SCTP SCTP tunnel between the first network element foundation and the second network element;

At least one user datagram protocol UDP tunnel and/or transmission control protocol TCP tunnel between the first network element foundation and the second network element.

4. method according to claim 3, is characterized in that, the chain of command message of processing to be transferred or user face data are encapsulated as the wherein corresponding transport layer message in transport layer tunnel in described at least one transport layer tunnel by described the first network element; A transport layer tunnel corresponding Internet protocol IP message wherein described in described transport layer message is encapsulated as, comprising:

The first network element is encapsulated as the chain of command message of processing to be transferred the wherein corresponding SCTP packet in SCTP tunnel in described at least one SCTP tunnel; A corresponding IP message in SCTP tunnel wherein described in described SCTP packet is encapsulated as;

Or,

The first network element is encapsulated as the user face data of processing to be transferred the wherein corresponding UDP message in UDP tunnel in described at least one UDP tunnel; A corresponding IP message in UDP tunnel wherein described in described UDP message is encapsulated as; Or the first network element is encapsulated as the user face data of processing to be transferred the wherein corresponding TCP message in TCP tunnel in described at least one TCP tunnel; A corresponding IP message in TCP tunnel wherein described in described TCP message is encapsulated as.

5. method according to claim 4, is characterized in that,

Described the first network element is encapsulated as the chain of command message of processing to be transferred the wherein corresponding SCTP packet in SCTP tunnel in described at least one SCTP tunnel, comprise: the first network element is determined in described at least one SCTP tunnel the SCTP tunnel corresponding with the classification type of the chain of command message of processing to be transferred, the chain of command message of this processing to be transferred is encapsulated as to the corresponding SCTP packet in SCTP tunnel of determining;

Or,

Described the first network element is encapsulated as the user face data of processing to be transferred the wherein corresponding UDP message in UDP tunnel in described at least one UDP tunnel, comprise: the first network element is determined in described at least one UDP tunnel the UDP tunnel corresponding with the classification type of the user face data of processing to be transferred, and the user face data of this processing to be transferred is encapsulated as to the corresponding UDP message in the UDP tunnel of determining; Or, described the first network element is encapsulated as the user face data of processing to be transferred the wherein corresponding TCP message in TCP tunnel in described at least one TCP tunnel, comprise: the first network element is determined in described at least one TCP tunnel the TCP tunnel corresponding with the classification type of the user face data of processing to be transferred, and the user face data of this processing to be transferred is encapsulated as to the corresponding TCP message in the TCP tunnel of determining.

6. method according to claim 4, is characterized in that,

Described the first network element is encapsulated as the chain of command message of processing to be transferred the wherein corresponding SCTP packet in SCTP tunnel in described at least one SCTP tunnel, comprising: the chain of command message of processing to be transferred is encapsulated as a best corresponding SCTP packet in SCTP tunnel of transmission quality in described at least one SCTP tunnel by the first network element;

Or,

Described the first network element is encapsulated as the user face data of processing to be transferred the wherein corresponding UDP message in UDP tunnel in described at least one UDP tunnel, comprising: the user face data of processing to be transferred is encapsulated as the best corresponding UDP message in a UDP tunnel of transmission quality in described at least one UDP tunnel by described the first network element; Or, described the first network element is encapsulated as the user face data of processing to be transferred the wherein corresponding TCP message in TCP tunnel in described at least one TCP tunnel, comprising: the user face data of processing to be transferred is encapsulated as the best corresponding TCP message in a TCP tunnel of transmission quality in described at least one TCP tunnel by described the first network element.

7. according to the method described in claim 1 to 6 any one, it is characterized in that,

Described method also comprises:

The first network element is monitored resources left ratio or the resource residual amount of the multiple network elements including the second network element in the first network element place cluster.

8. according to the method described in claim 1 to 6 any one, it is characterized in that,

The first network element and the second network element are radio network controller (RNC);

The first network element and the second network element belong to same RNC cluster, and the first network element and the second network element are by Iur-w interface inter-link.

9. the Internet protocol IP communication means between cluster network element, is characterized in that, comprising:

At least one transport layer tunnel between the second network element foundation and the first network element; Wherein, described the first network element and the second network element belong to same cluster, and described the first network element comprises radio network controller (RNC), and described the second network element comprises radio network controller (RNC);

10. method according to claim 9, is characterized in that,

11. 1 kinds of network elements, is characterized in that, comprising:

Transport layer tunnel module, for setting up at least one transport layer tunnel between described network element and the second network element; Wherein, described network element and the second network element belong to same cluster, and described network element comprises radio network controller (RNC), and described the second network element comprises radio network controller (RNC);

Physical layer block, for sending the Frame of described Data Link Layer Module encapsulation to the second network element;

Described application layer module determines that the concrete mode that the second network element meets transfer processing condition comprises:

If resources left ratio or resource residual amount maximum that the second network element in multiple network elements of monitoring module monitors is current, and the current resources left ratio of described network element or resource residual amount be less than setting threshold, determines that the second network element meets transfer processing condition; Or, if resources left ratio or resource residual amount maximum that the second network element in multiple network elements of monitoring module monitors is current, and the current resources left ratio of described network element or resource residual amount are less than the second network element current resources left ratio or resource residual amount, determine that the second network element meets transfer processing condition.

12. network elements according to claim 11, is characterized in that,

Described transport layer tunnel module comprises:

SCTP SCTP tunnel layer module, for setting up at least one SCTP SCTP tunnel between described network element and the second network element;

And/or,

User datagram protocol UDP tunnel layer module, for setting up at least one user datagram protocol UDP tunnel between described network element and the second network element;

And/or,

Transmission control protocol TCP tunnel layer module, for setting up at least one transmission control protocol TCP tunnel between described network element and the second network element.

13. network elements according to claim 12, is characterized in that,

SCTP tunnel layer module specifically also for, the chain of command message of the processing to be transferred of described application layer module assembling is encapsulated as to the wherein corresponding SCTP packet in SCTP tunnel in described at least one SCTP tunnel, described SCTP packet is encapsulated as to this wherein corresponding IP message in SCTP tunnel, this IP message is sent to IP layer module;

Or,

UDP tunnel layer module specifically also for, the user face data of the processing to be transferred of described application layer module assembling is encapsulated as to the wherein corresponding UDP message in UDP tunnel in described at least one UDP tunnel, described UDP message is encapsulated as to this wherein corresponding IP message in UDP tunnel, this IP message is sent to IP layer module;

Or,

TCP tunnel layer module specifically also for, the user face data of the processing to be transferred of described application layer module assembling is encapsulated as to the wherein corresponding TCP message in TCP tunnel in described at least one TCP tunnel, described TCP message is encapsulated as to this wherein corresponding IP message in TCP tunnel, this IP message is sent to IP layer module.

14. network elements according to claim 12, is characterized in that,

SCTP tunnel layer module specifically for, the chain of command message of the processing to be transferred of described application layer module assembling is encapsulated as to a best corresponding SCTP packet in SCTP tunnel of transmission quality in described at least one SCTP tunnel, described SCTP packet is encapsulated as to best IP message corresponding to a SCTP tunnel of this transmission quality, this IP message is sent to IP layer module; Or, determine the SCTP tunnel corresponding to classification type of the chain of command message of the processing to be transferred of assembling with described application layer module in described at least one SCTP tunnel, this chain of command message is encapsulated as to the corresponding SCTP packet in SCTP tunnel of determining, this SCTP packet is encapsulated as to the IP message that this SCTP tunnel of determining is corresponding, this IP message is sent to IP layer module;

Or,

Described UDP tunnel layer module specifically for, the user face data of the processing to be transferred of described application layer module assembling is encapsulated as to the best corresponding UDP message in a UDP tunnel of transmission quality in described at least one UDP tunnel, this UDP message is encapsulated as to best IP message corresponding to a UDP tunnel of this transmission quality, this IP message is sent to IP layer module; Or, determine the UDP tunnel corresponding to classification type of the user face data of the processing to be transferred of assembling with described application layer module in described at least one UDP tunnel, this user face data is encapsulated as to the corresponding UDP message in the UDP tunnel of determining, this UDP message is encapsulated as to the IP message that this UDP tunnel of determining is corresponding, this IP message is sent to IP layer module;

TCP tunnel layer module specifically for, the user face data of the processing to be transferred of described application layer module assembling is encapsulated as to best TCP message corresponding to a TCP tunnel of transmission quality in described at least one TCP tunnel, this TCP message is encapsulated as to best IP message corresponding to a TCP tunnel of this transmission quality, this IP message is sent to IP layer module; Or, determine the TCP tunnel corresponding to classification type of the user face data of the processing to be transferred of assembling with described application layer module in described at least one TCP tunnel, this user face data is encapsulated as to the corresponding TCP message in the TCP tunnel of determining, this TCP message is encapsulated as to the IP message that this TCP tunnel of determining is corresponding, this IP message is sent to IP layer module.

15. according to claim 11 to the network element described in 14 any one, it is characterized in that,

Described network element also comprises:

Monitoring modular, for monitoring resources left ratio or the resource residual amount of the multiple network elements including the second network element of described network element place cluster.

16. according to claim 11 to the network element described in 14 any one, it is characterized in that,

Described network element and the second network element are radio network controller (RNC),

Described network element and the second network element belong to same RNC cluster, and described network element and the second network element are by Iur-w interface inter-link.

17. 1 kinds of network elements, is characterized in that, comprising:

Transport layer tunnel module, for setting up at least one transport layer tunnel between described network element and the first network element; Wherein, the first network element and described network element belong to same cluster, and described the first network element comprises radio network controller (RNC), and described network element comprises radio network controller (RNC);

18. 1 kinds of communication systems, is characterized in that, comprising:

Network element as described in claim 11 to 17 any one.