CN102469015B - Realize method and device, the system of relay selection - Google Patents
Realize method and device, the system of relay selection Download PDFInfo
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- CN102469015B CN102469015B CN201010547503.2A CN201010547503A CN102469015B CN 102469015 B CN102469015 B CN 102469015B CN 201010547503 A CN201010547503 A CN 201010547503A CN 102469015 B CN102469015 B CN 102469015B
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Abstract
The invention discloses a kind of network topological information server for realizing relay selection, this network topological information server preserves network topological information and operator policy information, comprise relay services unit, this relay services unit includes relay selection module and/or relaying order module.The invention also discloses the system and method for realizing relay selection, the present invention is by the function of the existing network topological information server of expansion, make network topological information server can support the preferred function of via node, and corresponding interface can be provided, not only substantially increase the utilance of network topological information and operator policy information, significantly reduce operation burden and the data maintenance burden of relay management entity, and adopt the network topological information upgraded in time, effectively improve the operating efficiency of relay management entity, and the accuracy of relay selection can be ensured.
Description
Technical field
The present invention relates to the relaying technique of network and communication field, particularly relate to a kind of method and device, the system that realize relay selection.
Background technology
Along with the development of network technology, the multimedia service comprising VoIP business, video on demand/live broadcast, software download etc. is popularized rapidly in Packet Data Network, especially based in the network of peer-to-peer network technology.
Based in the network of peer-to-peer network technology, each node both obtains service as client from other nodes, also provides service to other nodes as server simultaneously.When peer node is positioned at network address translation (NAT, NetworkAddressTranslation) time after equipment or firewall box, communicating pair cannot directly connect, need to use relaying technique to realize NAT/ Firewall Traversing function, help communicating pair and set up directly connection.
In addition, because Packet Data Network adopts the mode of try one's best (besteffort) to transmit packet, its service quality is difficult to the demand reaching multimedia service, therefore, also be necessary to apply relaying technique in Packet Data Network, attempt adopting many transmission paths transmission packet, to improve network service quality.
Relaying technique refers to by increasing one or more via node on packet data package bang path, then carries out the technology of packet forwarding by this via node, reasonably selects via node can improve the service quality of relaying.In existing relay selection, selection and the surveying work of responsible relaying is come by relay management entity, because relay management entity self needs to safeguard considerable metrical information, when relaying number of nodes is huge, and when being dispersed in different location, the world, maintenance and the surveying work amount of relay management entity will be very huge.
Network topological information server is safeguarded by operator, it comprises comparatively detailed network topological information and carrier policy.The function of network topological information server and the network architecture are as shown in Figure 1, network topological information server provides network topological information service for topology information client, and its functional module comprises: network information service module, network overhead information service module, information filtering service module, nodal community service module, node overheads service module and server capability information services module.Wherein, network information service module allows the corresponding relation of group and IP address in topology information client downloads network, network overhead information service module allows the routing cost table between topology information client downloads group, information filtering service module allows the network overhead between topology information client query particular demographic ID and IP address corresponding relation or particular demographic ID, nodal community service module allows the attribute of the specific node of topology information client query, as corresponding group ID, connected mode etc., node overheads service module provides the service given candidate node list being provided to node priority for topology information client, server capability information service module provides server capabilities query.One of network topological information server realizes example, as Internet standardization body Internet Engineering Task group (IETF, InternetEngineeringTaskForce) application layer traffic Optimized Service device (ALTO, the Application-LayerTrafficOptimization) server proposed.
The main purpose of existing network topological information server is for network traffics optimization, and only supporting provides network topological information for node, and suitable peers include both communicates to be sensor selection problem based on these network topological informations.Although network topological information server has the topology information of carrying out required for relay selection, network topological information server does not support the selection to via node, does not support to be the function of the node preferred relay node needing communication for a pair and corresponding interface.Like this, in relay selection process, relay management entity not only cannot effectively to utilize in network topological information server existing network topological information to carry out relay selection, and need measurement and the data maintenance of self carrying out network topological information, cause the work load of relay management entity larger, and after network topological information changes, relay management entity also cannot upgrade in time self network topological information, reduce the operating efficiency of self, to such an extent as to can not accurately select suitable relaying, have influence on the service interaction between network node.
Summary of the invention
In view of this, main purpose of the present invention is to provide a kind of method and device, the system that realize relay selection, cannot effectively utilize the function of network topological information server and the overweight again problem of relay management entity acts burden to solve existing relay selection method.
For achieving the above object, technical scheme of the present invention is achieved in that
The invention provides a kind of network topological information server for realizing relay selection, this network topological information server preserves network topological information and operator policy information, described network topological information server comprises: relay services unit, this relay services unit includes relay selection module and/or relaying order module, wherein, relay selection module, described network topological information and operator policy information is resolved for passing through, according to the source node of relay services and the address of destination node or affiliated group information, select the candidate relay group for providing described relay services, obtain candidate relay group list, relaying order module, described network topological information and operator policy information is resolved for passing through, according to the source node of relay services and the address of destination node or affiliated group information and for providing the candidate relay node list of described relay services, candidate relay node in described candidate relay node list is sorted, obtains the precedence information of each candidate relay node.
In such scheme, described relay selection module, has based on described source node and the address of destination node or the interface of affiliated group information query candidate trunk group.
In such scheme, described relay selection module, also for obtaining the address of described source node and destination node or affiliated group information from relaying management entity, and returns to described relay management entity by obtained candidate relay group list.
In such scheme, described relay selection module, the candidate relay group quantity also for indicating according to relay management entity, for described relay services selects candidate relay group, obtains described candidate relay group list.
In such scheme, described relaying order module, has based on the address of described source node and destination node or affiliated group information and candidate relay node list, the interface of the priority of query candidate via node.
In such scheme, described relaying order module, also for obtaining the address of described source node and destination node or affiliated group information and candidate relay node list from relaying management entity or Relay service request end, and the precedence information of each candidate relay node obtained is returned to described relay management entity or Relay service request end.
Present invention also offers a kind of system for realizing relay selection, described system comprises: relay management entity and network topological information server, wherein,
Network topological information server preserves network topological information and operator policy information, comprising: relay services unit, and this relay services unit includes relay selection module and/or relaying order module, wherein,
Relay selection module, described network topological information and operator policy information is resolved for passing through, according to the source node of relay services and the address of destination node or affiliated group information, selecting the candidate relay group for providing described relay services, obtaining candidate relay group list;
Relaying order module, described network topological information and operator policy information is resolved for passing through, according to the source node of relay services and the address of destination node or affiliated group information and the candidate relay node list for providing relay services that gets, each candidate relay node in described candidate relay node list is sorted, obtains the precedence information of each candidate relay node;
Relay management entity, for after receiving the Relay service request that Relay service request end sends, according to the precedence information that described Relay service request and described relaying order module obtain, described candidate relay node list is screened, determines the candidate relay node providing current hop to serve;
And/or, for after receiving the Relay service request that Relay service request end sends, according to the candidate relay group list that described Relay service request and described relay selection module obtain, by resolving the via node information that self preserves, obtain described candidate relay node list.
In such scheme, described relay management entity, also for receive that Relay service request end sends include the Relay service request of the address of source node and destination node after,
The address of described source node and destination node or affiliated group information is sent to described relay selection module; And/or, to the candidate relay node list that described relaying order module sends the address of described source node and destination node or affiliated group information and obtains.
In such scheme, described relay management entity, also for sending the information being used to indicate candidate relay group quantity to described relay selection module.
In such scheme, described system also comprises: Relay service request end, for sending the Relay service request of the address including described source node and destination node to described relay management entity; And, for obtaining described candidate relay node list from described relay management entity, and to the candidate relay node list that described relaying order module sends the address of described source node and destination node or affiliated group information and obtains; Described relay management entity, also for obtained candidate relay node list is sent to described Relay service request end.
In such scheme, described Relay service request end specifically current hop service source node or replace source node to initiate the service control server of Relay service request or user terminal.
In such scheme, described relay management entity is the system that separate unit relay management server or multiple distributed relay management server form jointly.
In such scheme, described network topological information server is single network topology information service unit, or the system be jointly made up of multiple distributed network topology information service unit.
Present invention also offers a kind of method realizing relay selection, described method comprises:
Relay management entity is after receiving Relay service request that Relay service request end sends, that include the source node of current hop service and the address of destination node, according to described Relay service request, candidate relay group list is obtained from network topological information server, in obtained candidate relay group list, select candidate relay node, obtain candidate relay node list.
In such scheme, described from network topological information server acquisition candidate relay group list, comprising: described relay management entity sends the source node and the address of destination node or the candidate relay group appeal of affiliated group information that include current hop service to described network topological information server; Described network topological information server is according to described candidate relay group appeal, by resolving the network topological information and operator policy information self preserved, candidate relay group is selected from the trunk group current network, obtain candidate relay group list, and return to described relay management entity.
In such scheme, in described candidate relay group appeal, also comprise the information being used to indicate candidate relay group quantity.
In such scheme, described relay management entity selects candidate relay node in obtained candidate relay group list, obtain candidate relay node list, comprise: described relay management entity is according to described Relay service request and the candidate relay group list that gets from described network topological information server, by resolving the via node information that self preserves, select candidate relay node, obtain described candidate relay node list.
In such scheme, described relay management entity selects candidate relay node in obtained candidate relay group list, obtain candidate relay node list, also comprise: described relay management entity judges that whether each candidate relay node selected from described candidate relay group list is all invalid; If so, then again initiate candidate relay group appeal, require that described network topological information server feeds back candidate relay group list again; Otherwise, directly in described candidate relay group list, select candidate relay node, obtain candidate relay node list.
In such scheme, the candidate relay group quantity specified by described candidate relay group appeal of again initiating strengthens or to indicate the candidate relay group list returned last time invalid.
In such scheme, after obtaining described candidate relay node list, described method also comprises: described relay management server obtains the precedence information of each candidate relay node described candidate relay node list from network topological information server.
In such scheme, described relay management server obtains the precedence information of each candidate relay node from network topological information server, comprise: described relay management entity sends via node sequencing requests to described network topological information server, described network topological information server is asked to sort to each candidate relay node in described candidate relay node list, the candidate relay node list including the address of source node and destination node or affiliated group information in this via node sequencing requests and obtain; Described network topological information server is according to described via node sequencing requests, resolve self network topological information and operator policy information, each candidate relay node in described candidate relay node list is sorted, obtain the precedence information of each candidate relay node, and the precedence information obtained is returned to described relay management entity.
In such scheme, described method also comprises: described relay management entity is according to the described precedence information obtained from described network topological information server, by resolving the candidate relay node information that self preserves, each candidate relay node in described candidate relay node list is screened, determines the via node providing current hop to serve.
Present invention also offers a kind of method realizing relay selection, described method comprises: relay management entity receive Relay service request end send, include current hop service source node and destination node address Relay service request after, resolve the via node information of self, select candidate relay node, obtain candidate relay node list; Described relay management entity obtains the precedence information of each candidate relay node described candidate relay node list from network topological information server, and according to obtained precedence information, each candidate relay node is screened, determines the via node providing current hop to serve; Or, the information of obtained candidate relay node list and each candidate relay node is returned to described Relay service request end by described relay management entity, obtained the precedence information of each candidate relay node described candidate relay node list from network topological information server by described Relay service request end, according to obtained precedence information, each candidate relay node being screened, being defined as the via node for providing current hop to serve.
In such scheme, the described precedence information being obtained candidate relay node by network topological information server, comprise: described relay management entity sends via node sequencing requests to described network topological information server, described network topological information server is asked to sort to each candidate relay node in described candidate relay node list, the candidate relay node list including the address of described source node and destination node or affiliated group information in this via node sequencing requests and obtain; Described network topological information server is according to described via node sequencing requests, resolve self network topological information and operator policy information, each candidate relay node in described candidate relay node list is sorted, obtains the precedence information of each candidate relay node; And, the candidate relay node precedence information obtained is returned to described relay management entity, or directly described candidate relay node list and the precedence information that obtains is returned to described Relay service request end.
In such scheme, described Relay service request end obtains the precedence information of each candidate relay node from network topological information server, comprise: Relay service request end sends via node sequencing requests to network topological information server, request network topological information server sorts to candidate relay node each in candidate relay node list, includes the candidate relay node list that the address of described source node and destination node or affiliated group information and described relay management entity return in this via node sequencing requests; Described network topological information server is according to described via node sequencing requests, resolve self network topological information and operator policy information, candidate relay node in described candidate relay node list is sorted, obtain the precedence information of each candidate relay node, and the precedence information obtained is returned to described Relay service request end.
Method and the device realizing relay selection of the present invention, system, by expanding the function of existing network topological information server, the relay services unit for the treatment of relay services is increased in network topological information server, the information that this relay services unit can utilize existing network topology information server to provide is carried out the selection of trunk group and/or is sorted to candidate relay node, thus make network topological information server can support the preferred function of via node, and corresponding interface can be provided, also the qos measurement of relay management entity and data maintenance function is made effectively to be simplified, the network topological information in network topological information server and operator policy information is not only made to obtain effective utilization, improve the utilance of network topological information and operator policy information, alleviate operation burden and the data maintenance burden of relay management entity, and when network topological information changes, relay management entity can adopt the network topological information of renewal to carry out relay selection in time, thus effectively improve the operating efficiency of relay management entity, and ensure the accuracy of relay selection.
Accompanying drawing explanation
Fig. 1 is the composition structural representation of existing network topology information server;
Fig. 2 is that the present invention is for realizing the composition structural representation of the system of relay selection;
Fig. 3 is the composition structural representation of a kind of embodiment of the system for realizing relay selection of the present invention;
Fig. 4 is the schematic flow sheet realizing relay selection method of the embodiment of the present invention one;
Fig. 5 is the schematic flow sheet realizing relay selection method of the embodiment of the present invention two;
Fig. 6 is the schematic flow sheet realizing relay selection method of the embodiment of the present invention three.
Embodiment
Basic thought of the present invention is: transform network topological information server that is existing, that be responsible for network topological information management, under making network topological information server possess the condition of known communicating pair address or group information, the function of preferred relay node; Underway continue select time, jointly completed by the relay management entity of responsible relay management and above-mentioned improved network topological information server, thus greatly alleviate operation burden and the data maintenance burden of relay management entity, also efficiently utilize the network topological information and operator policy information preserved in network topological information server.
A kind of network topological information server for realizing relay selection of the present invention, this network topological information server preserves network topological information and operator policy information, mainly comprise: relay services unit, this relay services unit includes relay selection module and/or relaying order module, wherein
Relay selection module, described network topological information and operator policy information is resolved for passing through, according to the source node of relay services and the address of destination node or affiliated group information, selecting the candidate relay group for providing relay services, obtaining candidate relay group list;
Relaying order module, described network topological information and operator policy information is resolved for passing through, according to the source node of relay services and the address of destination node or affiliated group information and for providing the candidate relay node list of relay services, candidate relay node in described candidate relay node list is sorted, obtains the precedence information of each candidate relay node.
Here, the identification information of each candidate relay group is included, as information such as ID, in addition in described candidate relay group list, the precedence information of via node in each candidate relay group can also be comprised, or be used to specify the indication information the need of sorting to candidate relay node.
Here, the source node of relay services and the address of destination node or affiliated group information can be specifically the information such as the address of the information such as the address of the source node of Relay Server, ID, affiliated group ID and destination node, ID, affiliated group ID.
Wherein, described relay selection module also for: obtain the address of described source node and destination node or affiliated group information from relaying management entity, and obtained candidate relay group list returned to described relay management entity; According to the candidate relay group quantity of relay management entity instruction, for described relay services selects candidate relay group, obtain described candidate relay group list.
Wherein, described relaying order module also for: obtain the address of described source node and destination node or affiliated group information and candidate relay node list from relaying management entity or described Relay service request end, and the precedence information of each candidate relay node obtained returned to described relay management entity or Relay service request end.
In practical application, above-mentioned relay selection module has based on source node and the address of destination node or the interface of affiliated group information query candidate trunk group; Above-mentioned relaying order module has, based on the address of source node and destination node or affiliated group information and candidate relay node list, and the interface of the priority of query candidate via node.
Network topological information server of the present invention possesses following functions equally: from other information channels, as operation maintenance data system or router routing table etc., obtains network topological information and operator policy information, and carries out data maintenance and renewal.
Wherein, network topological information can include, but are not limited to: network group and and the corresponding relation of each network node address, routing cost between group, the attribute information of network node, syntople between group, the routing table and link-state information etc. of router in the information of link and network between group.
Here, the routing cost between group can be specifically the information such as expense, time delay, bandwidth in actual routing table; The attribute information of network node specifically can comprise the information such as access way, node capacity of network node.
Wherein, operator policy information can include, but are not limited to: network node selects priority, network path to select the information such as priority, node black and white lists.
Network topological information server of the present invention can possess each functional module realizing following functions equally: download group ID and the list of node address corresponding relation; Download group's routing cost table; Given group ID inquires about corresponding address realm; The attribute information of given node address inquiry corresponding node, comprises the corresponding group ID, access way etc. of query node; The list of given source node group ID and candidate group ID or both candidate nodes, the priority of query candidate group or both candidate nodes; Querying server ability etc.
Present invention also offers a kind of system realizing relay selection, with reference to shown in Fig. 2, this system mainly comprises: relay management entity and above-mentioned network topological information server, wherein, relay management entity, for after receiving the Relay service request that Relay service request end sends, according to the precedence information that described Relay service request and described relaying order module obtain, described candidate relay node list is screened, determines the candidate relay node providing current hop to serve; And/or, for after receiving the Relay service request that Relay service request end sends, according to the candidate relay group list that described Relay service request and described relay selection module obtain, by resolving the via node information that self preserves, obtain described candidate relay node list.
Wherein, the Relay service request that described candidate relay node list is sent according to described Relay service request end by relay management entity, the via node information of preserving by resolving self obtains, include the identification information for the candidate relay node providing current hop to serve, such as, the information such as address, this candidate relay node list can be specifically candidate relay node address list.In addition, the group information such as node attribute information and affiliated trunk group ID such as ID, access way of each candidate relay node can also be comprised.
Here, the via node information that described relay management entity is preserved, specifically can comprise: the information such as presence information, load information, affiliated group information, relaying access way of via node, via node information can be obtained when via node starts registration by relay management entity, or also can report described relay management entity by via node timing.
Wherein, described relay management entity, receive that Relay service request end sends include the Relay service request of the address of source node and destination node after, also for sending the address of described source node and destination node or affiliated group information to described relay selection module; And/or, to the candidate relay node list that described relaying order module sends the address of described source node and destination node or affiliated group information and obtains.
Here, relay management entity, also for sending the information being used to indicate candidate relay group quantity to described relay selection module.
Wherein, described system also comprises: Relay service request end, for sending the Relay service request of the address including described source node and destination node to described relay management entity; And, for obtaining described candidate relay node list from described relay management entity, and to the candidate relay node list that described relaying order module sends the address of described source node and destination node or affiliated group information and obtains.
Here, described relay management entity, also for obtained candidate relay node list is sent to described Relay service request end.
Here, described Relay service request end can be specifically the source node of current hop service or replace source node to initiate service control server or the user terminal of Relay service request; Described relay management entity is the system that separate unit relay management server or multiple distributed relay management server form jointly; Described network topological information server is single network topology information service unit, or the system be jointly made up of multiple distributed network topology information service unit.
In the present invention, after receiving Relay service request, relay management entity carries out alternately with network topological information server, obtains the topology information being used for relay selection, carries out preferably the actual via node of service that provides.
Fig. 3 is network architecture diagram of the present invention, and wherein, network topological information server is functionally expanded legacy network topology information server.Relay management entity is responsible for the Relay service request receiving Relay service request end, and manages one or more via node, safeguards the state information of via node, as whether via node is reached the standard grade, whether transshipped etc.The via node information that the not responsible maintenance of network topological information server is relevant.When network topological information server is used for relay selection, relay management entity obtains the relevant topology information of relay selection as topology information client's side link network topological information server.Meanwhile, the original function of network topological information server still retains, and other topology information clients still can use original protocol access network network topology information server to obtain service.
In the present invention, network topological information server, relay management entity and Relay service request end are all logic entities, can arrange in actual physics is disposed with the unification of other one or two logic entities.Wherein, Relay service request end can be user terminal, network service controlling server or other network entity.When the unification of these entities is arranged, concrete service message flow process can be realized by inside story.
In the present invention, network topological information server can be realized by centralized Single-Server mode, also can be realized by distributed way by multiple server being distributed in different location.
In the present invention, relay management entity can adopt various ways to carry out relay selection by above-mentioned network topological information server.Below in conjunction with specific embodiment, describing in detail by the present invention for realizing the Apparatus and system of relay selection, realizing the specific implementation of relay selection.
In addition, based on above-mentioned Apparatus and system, the invention allows for the method realizing relay selection, its specific implementation process, elaborate below in conjunction with by the specific implementation process of three embodiments to the method.
Embodiment one
In the present embodiment, relay management entity is after the Relay service request receiving the transmission of Relay service request end, first candidate relay group list is obtained by network topological information server, in obtained candidate relay group list, select candidate relay node again, obtain candidate relay node list.Optionally, relay management entity can also be sorted to candidate relay node by network topological information server, obtain the precedence information of candidate relay node, then according to the precedence information of candidate relay node, finally determine the via node providing current hop to serve.
In the present embodiment, relay management entity completes the process of relay selection by network topological information server, with reference to shown in Fig. 4, specifically can comprise the following steps:
Step 401, Relay service request end sends Relay service request to relay management entity, requires relay management entity partitioning relaying.
Here, comprise the information of the source node of current hop service and the address of destination node, business information and other relay request necessity in described Relay service request, such as, whether require the information such as free via node.
Here, Relay service request end can be initiate the source network node of relay services or replace service control server or the user terminal of source node initiation Relay service request or other entities.
Here, relay management entity can be separate unit management server, also can be the management system that multiple distributed management server forms jointly.
Step 402, relay management entity is as the topology information client of network topological information server, send candidate relay group appeal to network topological information server, request network topological information server returns the candidate relay group list that can be used in providing current hop to serve.
Here, trunk group is the one or more via nodes be distributed in certain network area, and arranging of trunk group can be determined by operator.
Here, address or affiliated group information, the candidate relay group quantity of needs and the information of other relay selection necessity of source node and destination node is included in the candidate relay group appeal that described relay management entity sends, such as, the trunk group derived by relaying free information selects the information such as blacklist.
Here affiliated group information can be specifically affiliated group ID.
Particularly, relay management entity can directly fill in the source node of relay services and the address of destination node in the relay request that will send; Or, also can behind the address of filling in source node and destination node, according to source node and the address of destination node and the corresponding relation of group ID belonging to it, by address transition group ID belonging to source node and destination node of source node and destination node, thus group of nodes ID belonging to source node and destination node can be comprised in the request that will send.
Here, if relay management entity self does not preserve the address of source node and destination node and the corresponding relation of group ID belonging to it, alternatively, before this step, relay management entity can obtain the address of source node and destination node and the corresponding relation of group ID belonging to it to network topological information server lookup.
Step 403, network topological information server is according to described candidate relay group appeal, by resolving the network topological information and operator policy information self preserved, candidate relay group is selected from the trunk group current network, obtain candidate relay group list, and return to relay management entity.
Here, by resolving the network topological information and operator policy information preserved, select in the process of candidate relay group, the selection algorithm that network topological information server is concrete adopted can be determined according to the specific strategy of operator.This process is prior art, does not repeat them here.
Such as, network topological information server can first by resolving the network topological information and operator policy information self preserved, candidate relay group is selected according to territorial scope, then according to the routing cost table in described operator policy information, calculate the routing cost setting up communication path from group belonging to communicating pair through each candidate relay group, finally select routing cost to be less than a certain threshold value or the minimum one or more trunk group of routing cost, obtain described candidate relay group list by the information of this one or more trunk group.
Here, the identification information of each candidate relay group is included in described candidate relay group list, as candidate relay group ID etc., in addition, the precedence information of each candidate relay group can also be comprised, or comprise the indication information the need of sorting again to each via node in each trunk group.
Wherein, in described candidate relay group list, the quantity of candidate relay group can be specified by relay management entity, or is determined according to carrier policy by network topological information server., such as, in carrier policy, prespecifiedly can return how many groups at every turn, or determine group's quantity of returning according to results of calculation.
If described network topological information server is made up of multiple Distributed Services unit, can be mutual by inside story between each distributed server in network topological information server, the mode of shared network topology information and operator policy information jointly completes above-mentioned trunk group and selects, also the mode of intermediate object program can be selected by transmitting trunk group, jointly complete trunk group to select, namely transmit group and Overhead mutually between network topological information server, or carry out initial option by a network topological information server.
Step 404, relay management entity from after described network topological information server gets described candidate relay group list, according to this candidate relay group list, by resolving the via node information that self preserves, select candidate relay node, obtain described candidate relay node list.
Wherein, comprise the identification information of each candidate relay node in candidate relay node list, as the address information etc. of candidate relay node, candidate relay node list can be specifically the address list of candidate relay node.In addition, the node attribute information such as ID, access way and affiliated trunk group information etc. of via node can also be comprised.
Here affiliated group information can be specifically affiliated group ID.
Wherein, for group information affiliated in via node information, relay management entity can by obtaining to network topological information server lookup, or from network topological information server, download the correspondence relationship information of group information belonging to via node and Self address, then obtain group information belonging to it according to the address of via node.
Step 405, if need to sort to candidate relay node, then relay management entity can send via node sequencing requests to network topological information server, asks described network topological information server to sort to described candidate relay node.
Wherein, the candidate relay node list including the address of source node and destination node or affiliated group information in described via node sequencing requests and obtain.
Here, the affiliated group information comprised in via node sequencing requests is specially affiliated group ID.
Particularly, when the candidate relay node quantity that relay management entity obtains is more, or indicate when will sort to via node in the candidate relay group list that network topological information server returns, then need to sort to candidate relay node, perform step 405-407, otherwise, can not step 405-407 be performed.
Here, relay management entity can when in described candidate relay node list, the quantity of candidate relay node exceedes some threshold values preset, and request network topological information server sorts to via node.Step 406, network topological information server is according to via node sequencing requests, resolve self network topological information and operator policy information, candidate relay node in described candidate relay node list is sorted, obtain the precedence information of each candidate relay node, and the candidate relay node precedence information obtained is returned to relay management entity.
Here, the network topological information of network topological information server parses self and operator policy information, to the process that candidate relay node sorts, can be specifically: the black and white lists in the geographical position of network topological information server parses out-trunk node, access way or operator policy information, then according to these information parsed, via node be sorted.
Such as, network topological information server can the preferably via node of some specific geographic position or the via node of certain specific access way or the via node that preferably indicated by black and white lists in carrier policy, as the via node that priority is high.
Step 407, the candidate relay node precedence information that relay management entity returns according to network topological information server, by resolving the candidate relay node information that self preserves, each candidate relay node in described candidate relay node list is screened again, determines providing the via node of current hop service and carry out relay resource and reserve.
Here, be defined as Relay service request end and provide the via node of relay services can be one, also can be multiple.
Such as, relay management entity directly can be chosen the highest several via nodes of priority and carry out responsible current hop service, or chooses the good via node of quality again after can carrying out actual measurement by the via node higher to priority and carry out responsible current hop service.
In the present embodiment, relay management entity is finally determined by via node A for communicating pair provides relay services, and by mutual with via node A, complete above-mentioned relay resource and reserve.
Step 408, relay management entity is by the information of each candidate relay node in the candidate relay node list obtained or determine providing the information of the via node of current hop service to return to Relay service request end.
In the present embodiment, step 405-407 is optional step, according to actual needs, can perform or not perform.
Here, if do not perform step 405-407, then in a step 408, the information of via node each in candidate relay node list can all be returned to Relay service request end by relay management entity, provides current hop service by any one or more via nodes in candidate relay node list; If perform step 405-407, relay management entity can in a step 408 by determine to provide the information of the via node of relay services to return to Relay service request end, by determined via node for source node and destination node provide relay services.
Relay selection flow process in the present embodiment can also comprise: relay management entity can be selected to carry out qos measurement to the part via node in candidate relay node list, determine the service quality that each via node is final, and according to determined service quality, described candidate relay node list is screened again.This step can be in step 404, can carry out simultaneously, can also carry out between step 406 and step 407 with step 405 or step 406.
In the present embodiment, can also comprise in step 404: relay management entity judges that whether each candidate relay node selected from described candidate relay group list is all invalid, if, then return step 402, again initiate candidate relay group appeal, candidate relay group quantity specified by candidate relay group appeal now strengthens, or it is invalid to indicate the candidate relay group list returned last time, require that described network topological information server feeds back candidate relay group list again, and select candidate relay node in the candidate relay group list again fed back at network topological information server, obtain candidate relay node list, otherwise the candidate relay group list that relay management entity returns according to described network topological information server, by resolving the via node information that self preserves, selecting candidate relay node, obtaining candidate relay node list.
Here, whether candidate relay node is effective, can be judged according to the via node information of self preserving by relay management entity, such as, judge that described via node is whether online and/or whether load is overweight and/or whether access way can obtain asking the communicating pair support etc. of relay services.
Embodiment two
In the present embodiment, relay management entity is after the Relay service request receiving the transmission of Relay service request end, first the via node information of self is resolved, select candidate relay node, the precedence information of candidate relay node is obtained again, alternatively, finally by network topological information server, again according to the candidate relay node precedence information obtained, determine the via node that relay services is provided.
In the present embodiment, relay management entity completes the process of relay selection by network topological information server, with reference to shown in Fig. 5, specifically can comprise the following steps:
Step 501, identical with step 401;
Step 502, the via node information that relay management entity is preserved by resolving self, selects candidate relay node, obtains candidate relay node list, and as the topology information client of network topological information server, send via node sequencing requests to network topological information server.
Here, the address of the source node that relay management entity is served according to current hop and destination node, by resolving the via node information that self preserves, select candidate relay node, obtain the process of candidate relay node list, with select the process of candidate relay node substantially identical in step 404 in above-described embodiment one, difference is, in the present embodiment, relay management entity selects candidate relay node in all via nodes of self-management, and in embodiment one, relay management entity is in the described candidate relay group list, and select candidate relay node by the via node of self-management.
Here, relay management entity according to the address of the source node comprised in via node information and Relay service request and destination node and business information, can carry out the selection of candidate relay node.
Here, selected candidate relay node can be described relay management entity management, all via nodes that can be used in providing current hop to serve, and also can be described relay management entity management, all part via nodes that can be used in the via node providing current hop to serve.
Such as, when can be used in providing the via node quantity of current hop service to exceed set threshold value, relay management entity can be able to provide the via node of relay services from described, adopts the way selection part alternatively via nodes such as poll (selecting different via node in turn successively) or Stochastic choice.
Here, comprise the identification information of each candidate relay node in candidate relay node list, as the address information etc. of candidate relay node, candidate relay node list can be specifically the address list of candidate relay node.In addition, the node attribute information such as ID, access way and affiliated trunk group information etc. of via node can also be comprised.
Here, via node sequencing requests can comprise the address of obtained candidate relay node list and described source node and destination node or affiliated group information.
Wherein, the affiliated group information of described source node and destination node can be obtained by relay management object query network topological information server, or from the corresponding relation of group information belonging to network topological information server loading source node and destination node and its address, then obtain according to the address of source node and destination node.
Here group information can be specifically group ID.
Step 503, identical with step 406, difference is, in the present embodiment, described candidate relay node list and the candidate relay node precedence information that obtains directly can also be returned to Relay service request end by network topological information server.
Step 504, identical with step 407.
In the present embodiment, step 504 is optional step, according to actual needs, can perform or not perform.
Step 505, identical with step 408, difference is, if do not perform step 504, the precedence information of the candidate relay node obtained by network topological information server is also returned to Relay service request end by relay management entity.
Relay selection flow process in the present embodiment can also comprise: relay management entity can be selected to carry out qos measurement to the part via node in candidate relay node list, determine the service quality that each via node is final, and according to determined service quality, described candidate relay node list is screened again.Before this step can be in step 502, can carry out with step 502 or step 503 simultaneously, can also carry out between step 503 and step 504.
Embodiment three
In the present embodiment, relay management entity is after the Relay service request receiving the transmission of Relay service request end, resolve the via node information of self, select candidate relay node, obtain candidate relay node list, and the information of candidate relay node list and each candidate relay node is returned to Relay service request end; Relay service request end obtains the precedence information of each candidate relay node in described candidate relay node list by network topological information server.
Particularly, relay management entity is after the Relay service request receiving the transmission of Relay service request end, first resolve the via node information of self, obtain candidate relay node list, and the information of candidate relay node list and each candidate relay node is sent to Relay service request end; Then, Relay service request end request network topological information server sorts to candidate relay node, and afterwards, the precedence information of candidate relay node is directly returned to Relay service request end by network topological information server.
In the present embodiment, relay management entity carries out the process of relay selection by network topological information server, specifically can comprise the following steps:
Step 601, identical with step 401;
Step 602, the via node information that relay management entity resolution self is preserved, for current hop services selection candidate relay node, obtain candidate relay node list, and the information of the candidate relay node list obtained and each candidate relay node is sent to Relay service request end.
Step 603, Relay service request end, as the topology information client of network topological information server, sends via node sequencing requests to network topological information server, and request network topological information server sorts to candidate relay node.
Here, the address or affiliated group information etc. of described candidate relay node list, source node and destination node is contained in described via node sequencing requests.
Here, the affiliated group information of described source node and destination node, obtained by relay management server lookup network topological information server by Relay service request end, or by relay management server from the corresponding relation of group information belonging to network topological information server loading source node and destination node with its address, then according to the address acquisition of self and opposite end.
Step 604, identical with step 406, difference is, the candidate relay node precedence information obtained directly is returned to Relay service request end by network topological information server.
Step 605, Relay service request end is according to the precedence information of described candidate relay node list and candidate relay node, each candidate relay node in described candidate relay node list is screened again, determine the via node that relay services is provided, and carry out follow-up relay services operation.
Here, Relay service request end is determined by via node A to provide current hop service, and alternately follow-up by with via node A, reserved relay resource and set up relay connection etc.
The above, be only preferred embodiment of the present invention, be not intended to limit protection scope of the present invention, and all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (18)
1. one kind for realizing the network topological information server of relay selection, this network topological information server preserves network topological information and operator policy information, it is characterized in that, described network topological information server comprises: relay services unit, this relay services unit includes relay selection module and relaying order module, wherein
Relay selection module, described network topological information and operator policy information is resolved for passing through, according to the source node of relay services and the address of destination node or affiliated group information, selecting the candidate relay group for providing described relay services, obtaining candidate relay group list;
Relaying order module, described network topological information and operator policy information is resolved for passing through, according to the source node of relay services and the address of destination node or affiliated group information and for providing the candidate relay node list of described relay services, candidate relay node in described candidate relay node list is sorted, obtains the precedence information of each candidate relay node; Described relaying order module, has based on the address of described source node and destination node or affiliated group information and candidate relay node list, the interface of the priority of query candidate via node; Described relaying order module, also for obtaining the address of described source node and destination node or affiliated group information and candidate relay node list from relaying management entity or Relay service request end, and the precedence information of each candidate relay node obtained is returned to described relay management entity or Relay service request end.
2. the network topological information server for realizing relay selection according to claim 1, is characterized in that, described relay selection module, has based on described source node and the address of destination node or the interface of affiliated group information query candidate trunk group.
3. the network topological information server for realizing relay selection according to claim 1 and 2, it is characterized in that, described relay selection module, also for obtaining the address of described source node and destination node or affiliated group information from relaying management entity, and obtained candidate relay group list is returned to described relay management entity.
4. the network topological information server for realizing relay selection according to claim 3, it is characterized in that, described relay selection module, candidate relay group quantity also for indicating according to relay management entity, for described relay services selects candidate relay group, obtain described candidate relay group list.
5. for realizing a system for relay selection, it is characterized in that, described system comprises: relay management entity, Relay service request end and network topological information server, wherein,
Network topological information server preserves network topological information and operator policy information, comprising: relay services unit, and this relay services unit includes relay selection module and/or relaying order module, wherein,
Relay selection module, described network topological information and operator policy information is resolved for passing through, according to the source node of relay services and the address of destination node or affiliated group information, selecting the candidate relay group for providing described relay services, obtaining candidate relay group list;
Relaying order module, described network topological information and operator policy information is resolved for passing through, according to the source node of relay services and the address of destination node or affiliated group information and the candidate relay node list for providing relay services that gets, each candidate relay node in described candidate relay node list is sorted, obtains the precedence information of each candidate relay node;
Relay management entity, for after receiving the Relay service request that Relay service request end sends, according to the precedence information that described Relay service request and described relaying order module obtain, described candidate relay node list is screened, determines the candidate relay node providing current hop to serve;
And/or, for after receiving the Relay service request that Relay service request end sends, according to the candidate relay group list that described Relay service request and described relay selection module obtain, by resolving the via node information that self preserves, obtain described candidate relay node list;
Relay service request end, for sending the Relay service request of the address including described source node and destination node to described relay management entity; And, for obtaining described candidate relay node list from described relay management entity, and to the candidate relay node list that described relaying order module sends the address of described source node and destination node or affiliated group information and obtains;
Described relay management entity, also for obtained candidate relay node list is sent to described Relay service request end.
6. the system for realizing relay selection according to claim 5, is characterized in that, described relay management entity, also for receive that Relay service request end sends include the Relay service request of the address of source node and destination node after,
The address of described source node and destination node or affiliated group information is sent to described relay selection module; And/or, to the candidate relay node list that described relaying order module sends the address of described source node and destination node or affiliated group information and obtains.
7. the system for realizing relay selection according to claim 6, is characterized in that, described relay management entity, also for sending the information being used to indicate candidate relay group quantity to described relay selection module.
8. the system for realizing relay selection according to any one of claim 5 to 7, it is characterized in that, described Relay service request end specifically current hop service source node or replace source node to initiate the service control server of Relay service request or user terminal.
9. the system for realizing relay selection according to any one of claim 5 to 7, is characterized in that, described relay management entity is the system that separate unit relay management server or multiple distributed relay management server form jointly.
10. the system for realizing relay selection according to any one of claim 5 to 7, it is characterized in that, described network topological information server is single network topology information service unit, or the system be jointly made up of multiple distributed network topology information service unit.
11. 1 kinds of methods realizing relay selection, it is characterized in that, described method comprises:
Relay management entity is after receiving Relay service request that Relay service request end sends, that include the source node of current hop service and the address of destination node, according to described Relay service request, candidate relay group list is obtained from network topological information server, in obtained candidate relay group list, select candidate relay node, obtain candidate relay node list;
After obtaining described candidate relay node list, described relay management entity sends via node sequencing requests to described network topological information server, described network topological information server is asked to sort to each candidate relay node in described candidate relay node list, the candidate relay node list including the address of source node and destination node or affiliated group information in this via node sequencing requests and obtain;
Described network topological information server is according to described via node sequencing requests, resolve self network topological information and operator policy information, each candidate relay node in described candidate relay node list is sorted, obtain the precedence information of each candidate relay node, and the precedence information obtained is returned to described relay management entity.
12., according to the method realizing relay selection described in claim 11, is characterized in that, described from network topological information server acquisition candidate relay group list, comprising:
Described relay management entity sends the source node and the address of destination node or the candidate relay group appeal of affiliated group information that include current hop service to described network topological information server;
Described network topological information server is according to described candidate relay group appeal, by resolving the network topological information and operator policy information self preserved, candidate relay group is selected from the trunk group current network, obtain candidate relay group list, and return to described relay management entity.
13., according to the method realizing relay selection described in claim 12, is characterized in that, also comprise the information being used to indicate candidate relay group quantity in described candidate relay group appeal.
14., according to the method realizing relay selection described in claim 11, is characterized in that, described relay management entity selects candidate relay node in obtained candidate relay group list, obtains candidate relay node list, comprising:
Described relay management entity is according to described Relay service request and the candidate relay group list that gets from described network topological information server, by resolving the via node information that self preserves, select candidate relay node, obtain described candidate relay node list.
15., according to the method realizing relay selection described in claim 14, is characterized in that, described relay management entity selects candidate relay node in obtained candidate relay group list, obtains candidate relay node list, also comprises:
Described relay management entity judges that whether each candidate relay node selected from described candidate relay group list is all invalid; If so, then again initiate candidate relay group appeal, require that described network topological information server feeds back candidate relay group list again; Otherwise, directly in described candidate relay group list, select candidate relay node, obtain candidate relay node list.
16., according to the method realizing relay selection described in claim 15, is characterized in that, the candidate relay group quantity specified by described candidate relay group appeal of again initiating strengthens or to indicate the candidate relay group list returned last time invalid.
17. methods realizing relay selection according to any one of claim 11-16, it is characterized in that, described method also comprises:
Described relay management entity is according to the described precedence information obtained from described network topological information server, by resolving the candidate relay node information that self preserves, each candidate relay node in described candidate relay node list is screened, determines the via node providing current hop to serve.
18. 1 kinds of methods realizing relay selection, it is characterized in that, described method comprises:
Relay management entity receive Relay service request end send, include current hop service source node and destination node address Relay service request after, resolve the via node information of self, select candidate relay node, obtain candidate relay node list;
Described relay management entity obtains the precedence information of each candidate relay node described candidate relay node list from network topological information server, and according to obtained precedence information, each candidate relay node is screened, determines the via node providing current hop to serve; The precedence information of candidate relay node is obtained by network topological information server, comprise: described relay management entity sends via node sequencing requests to described network topological information server, described network topological information server is asked to sort to each candidate relay node in described candidate relay node list, the candidate relay node list including the address of described source node and destination node or affiliated group information in this via node sequencing requests and obtain; Described network topological information server is according to described via node sequencing requests, resolve self network topological information and operator policy information, each candidate relay node in described candidate relay node list is sorted, obtains the precedence information of each candidate relay node; And, the candidate relay node precedence information obtained is returned to described relay management entity, or directly described candidate relay node list and the precedence information that obtains is returned to described Relay service request end;
Or, the information of obtained candidate relay node list and each candidate relay node is returned to described Relay service request end by described relay management entity, obtained the precedence information of each candidate relay node described candidate relay node list from network topological information server by described Relay service request end, according to obtained precedence information, each candidate relay node being screened, being defined as the via node for providing current hop to serve; Described Relay service request end obtains the precedence information of each candidate relay node from network topological information server, comprise: Relay service request end sends via node sequencing requests to network topological information server, request network topological information server sorts to candidate relay node each in candidate relay node list, includes the candidate relay node list that the address of described source node and destination node or affiliated group information and described relay management entity return in this via node sequencing requests; Described network topological information server is according to described via node sequencing requests, resolve self network topological information and operator policy information, candidate relay node in described candidate relay node list is sorted, obtain the precedence information of each candidate relay node, and the precedence information obtained is returned to described Relay service request end.
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| PCT/CN2011/082136 WO2012065531A1 (en) | 2010-11-17 | 2011-11-14 | Method, device, and system for implementing relay selection |
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| CN103152444B (en) * | 2013-03-25 | 2016-08-03 | 华为技术有限公司 | The network address translation of trunking scheme and message transmitting method and device, system |
| US9451524B2 (en) * | 2013-08-28 | 2016-09-20 | Google Inc. | Wireless networking with flexibly-ordered relayers |
| CN104902443B (en) * | 2014-03-05 | 2018-10-30 | 华为终端有限公司 | A kind of method and apparatus of communication |
| CN104936247B (en) * | 2014-03-20 | 2019-04-23 | 中国电信股份有限公司 | For the method for gravity treatment link terminal, base station and system |
| WO2015151958A1 (en) * | 2014-03-31 | 2015-10-08 | 株式会社リコー | Transmission terminal, transmission system, and selection method for relay device |
| KR101929868B1 (en) | 2014-11-07 | 2018-12-17 | 후아웨이 테크놀러지 컴퍼니 리미티드 | Connection establishment method, device, and system |
| US10530461B2 (en) * | 2015-03-25 | 2020-01-07 | Qualcomm Incorporated | Relay discovery and association messages |
| US10588031B2 (en) | 2015-08-09 | 2020-03-10 | Lg Electronics Inc. | Method for performing relay functions at ue in wireless communication system and apparatus therefor |
| CN109525957A (en) * | 2019-01-02 | 2019-03-26 | 成都华日通讯技术有限公司 | A kind of relaying election method of achievable remote data wireless transmission |
| JP7279416B2 (en) * | 2019-03-01 | 2023-05-23 | 株式会社リコー | Intermediary terminal, communication system, input system, intermediary control method, and program |
| CN113364869B (en) * | 2021-06-04 | 2022-07-15 | 杭州复杂美科技有限公司 | Block chain message transmission method, equipment and storage medium |
| CN114422518A (en) * | 2022-03-31 | 2022-04-29 | 北京奥星贝斯科技有限公司 | Method and device for requesting service |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101171579A (en) * | 2005-04-22 | 2008-04-30 | 微软公司 | Apparatus and method for community relay node discovery |
| CN101599895A (en) * | 2008-06-04 | 2009-12-09 | 华为技术有限公司 | Data processing method and wideband network gateway, strategy controller device and access node apparatus |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2071809A1 (en) * | 2007-12-13 | 2009-06-17 | Alcatel Lucent | Method of establishing a connection in a peer-to-peer network with network address translation (NAT) |
-
2010
- 2010-11-17 CN CN201010547503.2A patent/CN102469015B/en not_active Expired - Fee Related
-
2011
- 2011-11-14 WO PCT/CN2011/082136 patent/WO2012065531A1/en active Application Filing
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101171579A (en) * | 2005-04-22 | 2008-04-30 | 微软公司 | Apparatus and method for community relay node discovery |
| CN101599895A (en) * | 2008-06-04 | 2009-12-09 | 华为技术有限公司 | Data processing method and wideband network gateway, strategy controller device and access node apparatus |
Non-Patent Citations (4)
| Title |
|---|
| 《draft-meng-alto-relay-00：Relay Usage for ALTO in Real Time Communication》;王辉等;《IETF》;20090820;第1-13页 * |
| 《draft-penno-alto-protocol-04：ALTO protocol》;Y.yang，Ed.等;《IETF》;20091026;第1-36页 * |
| 《MBRS: A Meridian-Based Relay Selection algorithm for P2P VoIP》;王辉等;《Broadband Network and Multimedia Technology (IC-BNMT), 2010 3rd IEEE International Conference on》;20101028;第965-969页 * |
| 《Traffic localization for P2P-applications: The ALTO approach》;Jan Seedorf等;《Peer-to-Peer Computing, 2009. P2P 09. IEEE Ninth International Conference on》;20090911;第171-177页 * |
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