CN107360608A - The method and device of rerouting in super-intensive network UDN - Google Patents

The method and device of rerouting in super-intensive network UDN Download PDF

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Publication number
CN107360608A
CN107360608A CN201710423838.5A CN201710423838A CN107360608A CN 107360608 A CN107360608 A CN 107360608A CN 201710423838 A CN201710423838 A CN 201710423838A CN 107360608 A CN107360608 A CN 107360608A
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China
Prior art keywords
routing node
downstream
route
message
node
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CN201710423838.5A
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Chinese (zh)
Inventor
张传欣
刘宏举
马路娟
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Hisense Group Co Ltd
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Hisense Group Co Ltd
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Priority to CN201710423838.5A priority Critical patent/CN107360608A/en
Publication of CN107360608A publication Critical patent/CN107360608A/en
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W40/00Communication routing or communication path finding
    • H04W40/02Communication route or path selection, e.g. power-based or shortest path routing
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W40/00Communication routing or communication path finding
    • H04W40/02Communication route or path selection, e.g. power-based or shortest path routing
    • H04W40/12Communication route or path selection, e.g. power-based or shortest path routing based on transmission quality or channel quality
    • H04W40/14Communication route or path selection, e.g. power-based or shortest path routing based on transmission quality or channel quality based on stability

Abstract

The invention discloses a kind of method of rerouting in super-intensive network UDN, it is related to super-intensive network technique field, solves the problem of data-transmission interruptions and time delay that the expense for being periodically detected and bringing, and event flip-over type detection band are come.The main technical scheme of the present invention is:Routing node monitors that the electricity of itself is less than predetermined threshold value;The routing node sends message to the downstream routing node of channel, so that the downstream routing node is found the path for getting around the routing node and route with establishing new channel.The present invention also discloses a kind of device of rerouting in UDN.

Description

The method and device of rerouting in super-intensive network UDN
Technical field
The present invention relates to a kind of side of rerouting in super-intensive network technique field, more particularly to super-intensive network UDN Method and device.
Background technology
UDN (Super dense network, super-intensive network) is 5G (5-Generation, the 5th third-generation mobile communication skill Art) one of core technology, UDN can substantially reduce the distance of user's access by the Scaledeployment of WAP, so as to The handling capacity of user and the handling capacity (bps/km2) in region are improved, is the key technology for meeting 5G power system capacity demands.
Wireless backhaul path detection refers to carry out necessarily the link condition and transmission situation in current wireless backhaul path Measurement and information management, form the state estimation to current radio link, when find wireless backhaul links can not meet When transmission needs or can not provide service again, it should be reported and be fed back as soon as possible, to carry out follow-up wireless backhaul path Renewal.
At present, the scheme on wireless backhaul path detection in UDN has two kinds:One kind is periodic measurement and to report, Another kind is event flip-over type notification procedure.Periodic measurement and to report be a kind of basic process, each jump path is continuous Link quality and effect are measured and evaluated and tested, and collects and reports centralized control node;Event flip-over type notifies Process refers to once there occurs irrecoverable error, such as certain section of link is there occurs Radio Link Failure, the section on the link The situation that point then needs to fail notifies away, such as notifies to centralized control node, in favor of centralized control node pair Wireless backhaul links are updated and reconfigured.
But great expense will be brought to carry out detection using periodic mode;And use the detection of event flip-over type Be the irrecoverable error occurred, then be reported to centralized control node again and carry out reselecting and optimizing for path, this Also the problem of data-transmission interruptions and time delay will be brought.
The content of the invention
In view of the above problems, it is proposed that the present invention, overcome above mentioned problem to provide one kind or solve at least in part The method and device of rerouting in the super-intensive network UDN of above mentioned problem.
To reach above-mentioned purpose, present invention generally provides following technical scheme:
On the one hand, the embodiments of the invention provide a kind of method of rerouting in super-intensive network UDN, applied to ultra dense Collect network UDN, this method includes:
Routing node monitors that the electricity of itself is less than predetermined threshold value;
The routing node sends message to the downstream routing node of channel, is got around so that the downstream routing node is found The path of the routing node is route with establishing new channel.
Further, the routing node sends message to the downstream routing node of channel, so that downstream route section New channel route is established in the path that point searching gets around the routing node, is specially:
The routing node to the downstream routing node of channel send message when, carry the routing node in the message Upstream routing node address information so that the new channel route that the downstream routing node of the routing node is established includes The upstream routing node.
Further, the message also carries hop count information, and the hop count information is used to limit the downstream routing node Seeking scope when finding the path.
Further, after routing node monitors that the electricity of itself is less than predetermined threshold value, in addition to:
The routing node obtains itself link generation between the downstream routing node and/or upstream routing node The time of fracture;
If the time is more than preset time threshold, the routing node notifies the macro base station in the UDN is found to get around The path of the routing node is route with establishing new channel;
If the time is less than the preset time threshold, described in the routing node is sent to the downstream routing node Message.
On the other hand, the embodiment of the present invention also provides a kind of device of rerouting in super-intensive network UDN, applied to super Dense network UDN, the device include:
Monitoring unit, for monitoring that the electricity of itself is less than predetermined threshold value;
Transmitting element, for sending message to the downstream routing node of channel so that the downstream routing node find around The path for opening the routing node is route with establishing new channel.
Further, the transmitting element, is specifically used for:
When sending message to the downstream routing node of channel, the upstream route section of the routing node is carried in the message The address information of point, so that the new channel route that the downstream routing node of the routing node is established includes the upstream route Node.
Further, the message also carries hop count information, and the hop count information is used to limit the downstream routing node Seeking scope when finding the path.
Further, in addition to:
Notification module, obtain the chain between the routing node and the downstream routing node and/or upstream routing node The time that road is broken;
If the time is more than preset time threshold, the notification module notifies the macro base station in the UDN is found to get around The path of the routing node is route with establishing new channel;
If the time is less than the preset time threshold, described in the notification module is sent to the downstream routing node Message.
By above-mentioned technical proposal, technical scheme provided in an embodiment of the present invention at least has following advantages:
The method and device of rerouting in a kind of super-intensive network UDN provided by the invention, routing node monitor certainly The electricity of body is less than predetermined threshold value;The routing node sends message to the downstream routing node of channel, so that the downstream road The path for getting around the routing node is found by node to route to establish new channel.With at present by being periodically detected and thing Part flip-over type detection wireless backhaul path is compared, and the embodiment of the present invention is by monitoring that the electricity of itself determines less than predetermined threshold value Whether routing node interrupts, without it is each jump path in constantly link quality and effect are measured and Evaluation and test, so as to solve the problems, such as data-transmission interruptions and time delay on the basis of expense is reduced.
Brief description of the drawings
By reading the detailed description of hereafter preferred embodiment, it is various other the advantages of and benefit it is common for this area Technical staff will be clear understanding.Accompanying drawing is only used for showing the purpose of preferred embodiment, and is not considered as to the present invention Limitation.And in whole accompanying drawing, identical part is denoted by the same reference numerals.In the accompanying drawings:
Fig. 1 is the method flow diagram of rerouting in a kind of super-intensive network UDN provided in an embodiment of the present invention;
Fig. 2-Fig. 6 is that the node link that the specific embodiment of the invention provides interrupts repair process figure;
Fig. 7 is the composition frame chart of the device of rerouting in a kind of super-intensive network UDN provided in an embodiment of the present invention.
Embodiment
The exemplary embodiment of the disclosure is more fully described below with reference to accompanying drawings.Although the disclosure is shown in accompanying drawing Exemplary embodiment, it being understood, however, that may be realized in various forms the disclosure without should be by embodiments set forth here Limited.On the contrary, these embodiments are provided to facilitate a more thoroughly understanding of the present invention, and can be by the scope of the present disclosure Completely it is communicated to those skilled in the art.
The advantages of to make technical solution of the present invention, is clearer, and the present invention is made specifically with reference to the accompanying drawings and examples It is bright.
The embodiments of the invention provide a kind of method of rerouting in super-intensive network UDN, applied to super-intensive network UDN, as shown in figure 1, the described method comprises the following steps:
S101, routing node monitor that the electricity of itself is less than predetermined threshold value.
In embodiments of the present invention, routing node monitor the electricity of itself be less than predetermined threshold value by way of, it is determined that Whether routing node will be broken down, and the electricity when predetermined threshold value will power off according to actual routing node is configured 's.
It should be noted that electricity of the routing node in the embodiment of the present invention except itself can be monitored, moreover it is possible to supervise Survey donor (electron donor) ability information, itself wireless aps information, hop count information, the bandwidth information of support, Backhaul (are returned Journey circuit) bandwidth information, if possess extended capability information, detect travelling performance force information, adjacent node link condition information Deng the embodiment of the present invention is not specifically limited.
S102, the routing node send message to the downstream routing node of channel, so that the downstream routing node is sought The path for getting around the routing node is looked for be route to establish new channel.
In embodiments of the present invention, after routing node monitors that the electricity of itself is less than predetermined threshold value, the route section Point sends message to the downstream routing node of channel, so that the downstream routing node, which is found, gets around the path of routing node to build Vertical new channel route.I.e. downstream routing node searches one can reach upstream routing node not comprising the routing node Channel is route, and a new route from downstream routing node to upstream routing node is re-created so as to realize.
In embodiments of the present invention, the routing node to the downstream routing node of channel send message when, the message The address information of the middle upstream routing node for carrying the routing node, so that the downstream routing node of the routing node is established New channel route include the upstream routing node.
In the specific embodiment of the application, establishing new channel route detailed process is:Routing node is to road where it When corresponding downstream routing node sends message in footpath, the address letter of the upstream routing node of routing node is carried in the message Breath, an other paths for upstream routing node can be arrived for notifying the downstream routing node to search;Then routing node to Corresponding upstream routing node sends message in the paths for its institute, and the message is used to notify the upstream routing node to prepare to receive The search request of the downstream routing node.The message received is broadcasted by downstream routing node to its surroundings nodes, with So that the surroundings nodes for receiving broadcast message continue to search for upstream routing node, when upstream routing node receives surroundings nodes Route querying message when, upstream routing node is switched to by the access path of the routing node and downstream routing node The access path that routing node connects the downstream routing node by the surroundings nodes is swum, it is achieved thereby that downstream route section Point finds the path for getting around the routing node.
It should be noted that the process of establishing being route with upper signal channel is only an example proposed by the invention, in addition, To avoid broadcasting flooding among the nodes in the embodiment of the present invention, looking into for upstream routing node can be restricted to by routing node Scope is looked for, i.e., when finding the path limiting the downstream routing node by way of message carrying hop count information Seeking scope.
In embodiment provided by the invention, when routing node monitors that the electricity of itself is less than predetermined threshold value, the road Message is sent from node to the downstream routing node of channel, so that the downstream routing node, which is found, gets around the routing node Path is route with establishing new channel.I.e. downstream routing node sends broadcast message to the node around it, inquires surroundings nodes Whether can reach the route of upstream routing node, it is necessary to check itself after surroundings nodes receive the broadcast message if having With the presence or absence of the effective routing that can reach upstream routing node in routing table, and then new channel is established with this and route.
In addition, in the preferred embodiment of the application, routing node can also monitor that it is default that the electricity of itself is less than After threshold value, the time that link of the acquisition itself between downstream routing node and/or upstream routing node is broken is put, and Determine it is that rerouting is carried out by routing node or rerouting is carried out by macro base station based on the time, specific judgment mode is such as Under:
(1) if the time is more than preset time threshold
The routing node notify macro base station in the UDN find get around the routing node path it is new to establish Channel is route, and specifically, the path for getting around the routing node is found by macro base station and is route and downstream road with establishing new channel It is consistent to establish the executive mode that new channel is route that the path of the routing node is got around by node searching, it is no longer superfluous herein State.
(2) if the time is less than the preset time threshold
The routing node sends the message to the downstream routing node.
The method of rerouting in the UDN provided by above scheme, routing node monitor that the electricity of itself is less than Predetermined threshold value;The routing node sends message to the downstream routing node of channel so that the downstream routing node find around The path for opening the routing node is route with establishing new channel.With at present by be periodically detected and event flip-over type detect Wireless backhaul path is compared, and the embodiment of the present invention is by monitoring whether the electricity of itself determines routing node less than predetermined threshold value Interrupt, without constantly link quality and effect are measured and evaluated and tested in each jump path, so that Solve the problems, such as data-transmission interruptions and time delay on the basis of reduction expense.
In order to preferably be said to the method that route is redefined in super-intensive network UDN provided in an embodiment of the present invention Bright, following examples will be refined and extended for above steps.In the accompanying drawing corresponding to the embodiment, each route Link between node represents that routing node meets the upstream routing node of preparatory condition with space length away from situation with solid line And the link (link that will interrupt) between the routing node of downstream is represented by dotted lines, each routing node sends message Represented with the dotted line with arrow.
As shown in Fig. 2 in this specific embodiment, routing node is caused to monitor that the electricity of itself is less than predetermined threshold value Situation is possible as routing node A and now closed, or now electricity exhausts routing node A, causes routing node A It can not be serviced again for routing node B, while also connect and gone less than in macro base station S.
In order to solve the above-mentioned technical problem, this specific embodiment is primarily based in above description combination Fig. 2 network architectures Actual conditions are to " routing node monitors that the electricity of itself is less than predetermined threshold value, downstream routing node of the routing node to channel Message is sent, so that the downstream routing node is found the path for getting around the routing node and route to establish new channel " Process is described:
Such as Fig. 2, the routing node A in the embodiment of the present invention is after monitoring that the electricity of itself is less than predetermined threshold value, road From node A to it, corresponding downstream routing node B sends message in the paths, and routing node A upstream road is carried in the message By the address information of node M, a upstream routing node M other paths can be arrived for notifying downstream routing node B to search;So To its institute, corresponding upstream routing node M sends message to routing node A in the paths afterwards, and the message is used to notify upstream route section Point M prepares to receive downstream routing node B search request.Downstream routing node B is wide to its surroundings nodes by the message received Broadcast is gone, to cause the surroundings nodes for receiving broadcast message to continue to search for upstream routing node M;When upstream routing node M connects When receiving the route querying message of the surroundings nodes, upstream routing node M is passed through into routing node A and downstream routing node B Access path switch to upstream routing node M by the surroundings nodes connect downstream routing node B access path.
It should be noted that comprising at least a surroundings nodes in the path repaired again, i.e., received in surroundings nodes After the broadcast message that downstream routing node B is sent, continue to send broadcast message to the surroundings nodes where it, if receiving broadcast Routing node M is included in the surroundings nodes of message, then is repaired successfully;Route is not included in the surroundings nodes of broadcast message if receiving Node M, then the surroundings nodes for receiving broadcast message continue to send broadcast message to the surroundings nodes where it, until finding road By node M, path recovery success.
The specific schematic diagram of above-mentioned flow as shown in Figures 3 to 6, due to routing node A at once to close (turn off), Therefore the path between routing node A and downstream routing node B, the path between routing node A and upstream routing node M all can Fracture.Therefore, routing node A should now notify downstream routing node B go for upstream routing node M (node M now or with it is grand Base station keeps connection), and upstream routing node M gives notice message, for notifying upstream routing node M to prepare under receiving Routing node B search request is swum, once receiving downstream routing node B search request, upstream routing node M is switched to newly Path in, and cut off connection therebetween;And downstream routing node B sends message, for notifying downstream routing node B Upstream routing node M is searched, once upstream routing node M responds search request, then cuts off downstream routing node B and routing node A path.
In the diagram shown in figure 3, routing node B in downstream sends broadcast message and arrives routing node E, and subsequent process is such as Shown in Fig. 4, routing node E sends broadcast message and arrives routing node C, and in the schematic diagram shown in Fig. 5, routing node C sends wide Broadcast message and realize that the network structure after channel Route establishment is shown according to said process to routing node M, last downstream routing node It is intended to as shown in fig. 6, routing node M to routing node B new route is established, path switches to M-C-E-B by M-A-B.
In addition, to avoid broadcasting big vast model among the nodes, in the specific embodiment shown in Fig. 4, routing node E is connecing After the broadcast message for receiving downstream routing node B transmissions, routing node E continues the broadcast transmission for searching routing node A Go, routing node A seeking scope is restricted to by routing node B, is such as limited within double bounce, such routing node C is just not required to To broadcast again and look into the message that route looks for A.To prevent path as E-C-S-M-A from existing.
By the analysis of case above, before routing node A and downstream routing node B link breakdown, road is allowed for By node B by way of locally repairing, routing node S (macro base station) is smoothly connected to, so that whole data transfer mistake Journey is not interrupted, and ensures delay requirement.
Except the technical scheme of embodiments above, the application also proposed one kind determine when using it is local repair with And macro base station when is notified concentrate the technical scheme of reparation.It is specific as follows:
In a kind of preferred embodiment of this specific embodiment, routing node A is also needed to the function of judging, such as road Need to be predicted the rupture time of its link by node A, such as with time threshold T, when its judgement is after T is more than, link It can just be broken, then start to concentrate and repair, that is, notify macro base station to carry out concentration reparation;If less than after T, start and locally repair It is multiple.
In another preferred embodiment of this specific embodiment, routing node A can also according to macro base station S and most Telepoint base station D distance judged, as routing node A is closer apart from macro base station, then on the contrary by the way of concentrating and repairing Then by the way of locally repairing.
When after concentrating by the way of reparation, the specific embodiment is road again by node A notices macro base station S by routeing One paths are selected by node D or select a paths for routing node A downstream routing node B.When macro base station receives section After the route repair request notice that point A is sent, then a path for not including routing node A is planned again.
Further, the embodiment of the present invention provides a kind of device of rerouting in super-intensive network UDN, applied to ultra dense Collect network UDN, described device includes:
Monitoring unit 21, monitor that the electricity of itself is less than predetermined threshold value for routing node;
Transmitting element 22, message is sent to the downstream routing node of channel for the routing node, so that the downstream Routing node is found the path for getting around the routing node and route with establishing new channel.
The transmitting element 22, specifically for the routing node to the downstream routing node of channel send message when, institute The address information for the upstream routing node that the routing node is carried in message is stated, so that the downstream route section of the routing node The new channel route that point is established includes the upstream routing node.
In embodiments of the present invention, the message also carries hop count information, and the hop count information is used to limit the downstream Seeking scope of the routing node when finding the path.
In embodiments of the present invention, in addition to:
Notification module, obtain the chain between the routing node and the downstream routing node and/or upstream routing node The time that road is broken;
If the time is more than preset time threshold, the notification module notifies the macro base station in the UDN is found to get around The path of the routing node is route with establishing new channel.
If the time is less than the preset time threshold, described in the notification module is sent to the downstream routing node Message.
It should be noted that in a kind of super-intensive network UDN provided in an embodiment of the present invention involved by the device of rerouting And other corresponding corresponding descriptions for describing, may be referred to method shown in Fig. 1 of each functional unit, it will not be repeated here, but it should Clearly, the device in the present embodiment can correspond to the full content realized in preceding method embodiment.
The device of rerouting, routing node monitor the electricity of itself in a kind of super-intensive network UDN provided by the invention Amount is less than predetermined threshold value;The routing node sends message to the downstream routing node of channel, so that the downstream routing node The path for getting around the routing node is found to route to establish new channel.With at present by be periodically detected and event trigger Type detection wireless backhaul path is compared, and the embodiment of the present invention determines route section by monitoring that the electricity of itself is less than predetermined threshold value Whether point interrupts, without constantly link quality and effect are measured and evaluated and tested in each jump path, So as to solve the problems, such as data-transmission interruptions and time delay on the basis of expense is reduced.
Through the above description of the embodiments, those skilled in the art can be understood that the present invention can lead to Hardware realization is crossed, the mode of necessary general hardware platform can also be added by software to realize.Based on such understanding, this hair Bright technical scheme can be embodied in the form of software product, and the software product can be stored in a non-volatile memories In medium (can be CD-ROM, USB flash disk, mobile hard disk etc.), including some instructions are causing a computer equipment (can be Personal computer, server, or network equipment etc.) perform method described in each implement scene of the present invention.
It will be appreciated by those skilled in the art that accompanying drawing is a schematic diagram for being preferable to carry out scene, module in accompanying drawing or Flow is not necessarily implemented necessary to the present invention.
It will be appreciated by those skilled in the art that the module in device in implement scene can be described according to implement scene into Row is distributed in the device of implement scene, can also carry out one or more dresses that respective change is disposed other than this implement scene In putting.The module of above-mentioned implement scene can be merged into a module, can also be further split into multiple submodule.
The invention described above sequence number is for illustration only, does not represent the quality of implement scene.
Disclosed above is only several specific implementation scenes of the present invention, and still, the present invention is not limited to this, Ren Heben What the technical staff in field can think change should all fall into protection scope of the present invention.

Claims (8)

1. a kind of method of rerouting in super-intensive network UDN, it is characterised in that including:
Routing node monitors that the electricity of itself is less than predetermined threshold value;
The routing node sends message to the downstream routing node of channel so that the downstream routing node find get around it is described The path of routing node is route with establishing new channel.
2. the method as described in claim 1, it is characterised in that the routing node is sent to the downstream routing node of channel to disappear Breath, so that new channel route is established in the path that downstream routing node searching gets around the routing node, it is specially:
The routing node to the downstream routing node of channel send message when, carry the upper of the routing node in the message The address information of routing node is swum, so that the new channel route that the downstream routing node of the routing node is established is including described Upstream routing node.
3. method as claimed in claim 2, it is characterised in that
The message also carries hop count information, and the hop count information is used to limit the downstream routing node in the searching path When seeking scope.
4. the method as described in claim any one of 1-3, it is characterised in that the electricity for monitoring itself in routing node is less than After predetermined threshold value, in addition to:
The routing node obtains itself link between the downstream routing node and/or upstream routing node and is broken Time;
If the time is more than preset time threshold, it is described that the routing node notifies that the macro base station searching in the UDN is got around The path of routing node is route with establishing new channel;
If the time is less than the preset time threshold, disappear described in the routing node to downstream routing node transmission Breath.
A kind of 5. device of rerouting in super-intensive network UDN, it is characterised in that including:
Monitoring unit, for monitoring that the electricity of itself is less than predetermined threshold value;
Transmitting element, for sending message to the downstream routing node of channel, so that the downstream routing node, which is found, gets around institute The path for stating routing node is route with establishing new channel.
6. device as claimed in claim 5, it is characterised in that the transmitting element, be specifically used for:It is route to the downstream of channel When node sends message, the address information of the upstream routing node of the routing node is carried in the message, so that the road The new channel route established by the downstream routing node of node includes the upstream routing node.
7. device as claimed in claim 6, it is characterised in that the message also carries hop count information, and the hop count information is used Seeking scope when limiting the downstream routing node and finding the path.
8. the device as described in claim any one of 5-7, it is characterised in that also include:
Notification module, obtain the link hair between the routing node and the downstream routing node and/or upstream routing node The time of raw fracture;
If the time is more than preset time threshold, it is described that the notification module notifies that the macro base station searching in the UDN is got around The path of routing node is route with establishing new channel;
If the time is less than the preset time threshold, disappear described in the notification module to downstream routing node transmission Breath.
CN201710423838.5A 2017-06-07 2017-06-07 The method and device of rerouting in super-intensive network UDN Pending CN107360608A (en)

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WO2018223649A1 (en) * 2017-06-07 2018-12-13 海信集团有限公司 Method for re-establishing route in ultra-dense network (udn), and micro base station

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