CN110475383A - Determine the method and device of father node - Google Patents

Determine the method and device of father node Download PDF

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Publication number
CN110475383A
CN110475383A CN201810451206.4A CN201810451206A CN110475383A CN 110475383 A CN110475383 A CN 110475383A CN 201810451206 A CN201810451206 A CN 201810451206A CN 110475383 A CN110475383 A CN 110475383A
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China
Prior art keywords
node
information
father
backhaul link
link
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CN201810451206.4A
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Chinese (zh)
Inventor
杨瑾
毕峰
陈琳
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ZTE Corp
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ZTE Corp
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Priority to CN201810451206.4A priority Critical patent/CN110475383A/en
Priority to PCT/CN2019/086283 priority patent/WO2019214693A1/en
Publication of CN110475383A publication Critical patent/CN110475383A/en
Pending legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Multimedia (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

This application provides a kind of method and devices of determining father node, wherein, this method comprises: first node obtains father node reference information, wherein the father node reference information includes at least one of: the signal quality information of the Radio Link between the first node and second node；The first kind of second node broadcast indicates information；The second class that management node is sent indicates information；Preconfigured information；The first node determines father node according to the father node reference information.By adopting the above technical scheme, give at least the scheme of four kinds of determining father nodes, it solves the problems, such as to lack the scheme for establishing backhaul link between the base station for being suitable for new system in the related technology, using the method for determining father node and establishing backhaul link with father node, realizes and carry out backhaul link data transmission between base station or node.

Description

Determine the method and device of father node
Technical field
This application involves the communications fields, in particular to a kind of method and device of determining father node.
Background technique
In the related art, the increasingly increase with the development of wireless communication technique and user to communication requirement, in order to full Foot is higher, faster needs with the communication of update, and technology has become the 5th third-generation mobile communication (5th Generation, referred to as are as follows: 5G) For the trend of future network development.
In 5G communication system, due to the resource of frequency range that system uses, the factors such as network deployment requirements, the base station 5G (gNB or Ng-eNB deployment density) is higher, and part of base station does not have to be directly connected to core net.In order to reach lower network It is laid with cost, while stable network service being provided, higher resource efficiency and network disposition flexibility is obtained, needs for base Wireless backhaul link (Backhaul link) connection is established between standing.Fig. 1 is according to wireless between base station in the related technology The schematic diagram of backhaul link, as shown in Figure 1, gNB B and gNB C itself is not directly connected to core net, therefore can not will The information on access link (Access link) between base station and user terminal (UE, User Equipment) is sent to core Heart net.And base station gNB A has and is directly connected to core net, then by between gNB A and gNB B, gNB A and gNB C Wireless backhaul link connection is established, the base station (gNB B and gNB C) not being directly connected to core net can be made to pass through backhaul chain Road is connected to gNB A, is further connected indirectly to core net.Pass through the backhaul link forwarding via gNB A, gNB B and gNB C can provide the information exchange between core net for the UE serviced.
In 5G communication system, connection between base station on backhaul link and communication corresponding solution not yet, Make the base station 5G that can not establish backhaul link with neighbor base station to connect.For such issues that, at present not yet propose effective solution side Case.
Aiming at the problem that shortage is suitable for establishing the scheme of backhaul link between the base station of new system in the related technology, at present There are no effective solution schemes.
Summary of the invention
The embodiment of the present application provides a kind of method and device of determining father node, at least to solve to lack in the related technology The problem of scheme suitable for establishing backhaul link between the base station of new system.
According to one embodiment of the application, a kind of method of determining father node is provided, comprising: first node obtains father Node reference information, wherein the father node reference information includes at least one of: the first node and second node it Between Radio Link signal quality information；The first kind of the second node broadcast indicates information；Management node send the Two classes indicate information；Preconfigured information；The first node determines father node according to the father node reference information, and with it is described Father node establishes backhaul link connection.
According to another embodiment of the application, a kind of device of determining father node is additionally provided, is applied to first node, Include: the first acquisition module, for obtaining father node reference information, wherein the father node reference information include it is following at least One of: the signal quality information of the Radio Link between the first node and second node；The of second node broadcast One kind instruction information；The second class that management node is sent indicates information；Preconfigured information；First determining module, for according to institute It states father node reference information and determines father node；Link block is connect for establishing backhaul link with the father node.
According to another embodiment of the application, a kind of storage medium is additionally provided, meter is stored in the storage medium Calculation machine program, wherein the computer program is arranged to execute the step in any of the above-described embodiment of the method when operation.
According to another embodiment of the application, a kind of electronic device, including memory and processor are additionally provided, it is described Computer program is stored in memory, the processor is arranged to run the computer program to execute any of the above-described Step in embodiment of the method.
Pass through the application, first node obtain father node reference information, wherein the father node reference information include with down toward It is one of few: the signal quality information of the Radio Link between the first node and second node；The first of second node broadcast Class indicates information；The second class that management node is sent indicates information；Preconfigured information；The first node is referred to according to the father node Information determines father node, and establishes backhaul link with the father node and connect.By adopting the above technical scheme, four kinds are given at least really The scheme for determining father node solves and lacks the scheme for establishing backhaul link between the base station for being suitable for new system in the related technology Problem is realized using the method for determining father node and establishing backhaul link with father node and is carried out backhaul chain between base station or node Circuit-switched data transmission.
Detailed description of the invention
The drawings described herein are used to provide a further understanding of the present application, constitutes part of this application, this Shen Illustrative embodiments and their description please are not constituted an undue limitation on the present application for explaining the application.In the accompanying drawings:
Fig. 1 is the schematic diagram according to the wireless backhaul link between base station in the related technology；
Fig. 2 is the flow chart according to the method for the determination father node of the embodiment of the present application；
Fig. 3 is the schematic diagram one that backhaul link connection is established between the base station according to the embodiment of the present application；
Fig. 4 is the schematic diagram two that backhaul link connection is established between the base station according to the embodiment of the present application；
Fig. 5 is the base station measurement link-quality according to the example one of the embodiment of the present application method one and the side for selecting father node Method flow chart；
Fig. 6 is the flow diagram that father node is selected according to the first node of the embodiment of the present application method two；
Fig. 7 is the architecture diagram according to the base station selected father node of the example two of the embodiment of the present application method two；
Fig. 8 is the architecture diagram that father node is selected according to the first node of the example three of the embodiment of the present application method two；
Fig. 9 is the architecture diagram that father node is selected according to the first node of the example four of the embodiment of the present application method two；
Figure 10 is the method flow diagram one that father node is determined according to the first node of the embodiment of the present application method three；
Figure 11 is the method flow diagram two that father node is determined according to the first node of the embodiment of the present application method three；
Figure 12 is the architecture diagram that father node is selected according to the first node of the example five of the embodiment of the present application method three.
Specific embodiment
The application is described in detail below with reference to attached drawing and in conjunction with the embodiments.It should be noted that not conflicting In the case of, the features in the embodiments and the embodiments of the present application can be combined with each other.
It should be noted that the description and claims of this application and term " first " in above-mentioned attached drawing, " Two " etc. be to be used to distinguish similar objects, without being used to describe a particular order or precedence order.
A kind of mobile communications network (including but not limited to 5G mobile communications network), the net are provided in the embodiment of the present application The network architecture of network may include network side equipment (such as base station) and terminal.Providing one kind in the present embodiment can run on Information transferring method in the above-mentioned network architecture, it should be noted that the above- mentioned information transmission side provided in the embodiment of the present application The running environment of method is not limited to the above-mentioned network architecture.Node in present specification can be base station, and network side includes One of following entity is a variety of: evolved base station (eNB), relay station (RN), 5G system base-station (gNB, ng-eNB), cell It cooperates entity (MCE), gateway (GW), mobility management apparatus (MME), Evolved UTRAN (EUTRAN) behaviour Manage and safeguard (OAM) manager.
Embodiment one
In the scene that can be applied to Fig. 1 in present specification, provide in the present embodiment one kind run on it is above-mentioned The method of the determination father node of the network architecture, Fig. 2 are according to the flow chart of the method for the determination father node of the embodiment of the present application, such as Shown in Fig. 2, which includes the following steps:
Step S202, first node obtain father node reference information, wherein the father node reference information include it is following at least One of: the signal quality information of the Radio Link between the first node and second node；The first kind of second node broadcast Indicate information；The second class that management node is sent indicates information；Preconfigured information；
Step S204, the first node determine father node according to the father node reference information；
Step S206, first node foundation are connect with the backhaul link of the father node.
Second node in present specification refers to the adjacent node of first node, is able to detect and receives the wireless of other side The node of signal can be described as adjacent node.
Through the above steps, first node obtains father node reference information, wherein the father node reference information includes following At least one: the signal quality information of the Radio Link between the first node and second node；The of second node broadcast One kind instruction information；The second class that management node is sent indicates information；Preconfigured information；The first node is joined according to the father node It examines information and determines father node and further establish backhaul link with father node and connect.By adopting the above technical scheme, it gives at least The scheme of four kinds of determining father nodes solves to lack in the related technology and establishes backhaul link between the base station for being suitable for new system The problem of scheme, is realized and is carried out between base station or node using the method for determining father node and establishing backhaul link with father node Backhaul link data transmission.
Optionally, the execution sequence of step S202 and step S204 can be interchanged, it can step S204 is first carried out, Then S202 is executed again.
Optionally, after determining father node, which establishes the connection between the father node, is saved by the father Point is connected to core network element.
Optionally, which obtains the father node reference information, including at least one of:
The signal quality of Radio Link between first node measurement and one or more second nodes, obtain this The signal quality information of Radio Link between one node and one or more second nodes；
The first node receives the broadcast message that one or more second nodes are sent, and indicates including the first kind Information；
The first node receives second class instruction information of management node transmission, and wherein second class indicates packet Identification information containing the father node that the management node is first node configuration, and/or, which is the first node The identification information of the first kind node of configuration；
The first node determines the preconfigured information, wherein the preconfigured information is by network side configuration instruction or by this First node is pre-configured, wherein and the preconfigured information is included as the identification information for the father node that the first node is pre-configured, and/ Or the identification information for the first kind node being pre-configured for the first node；
Wherein, which refers to there is the node being directly connected to core network element.
Optionally, which determines father node, including at least one of according to the father node reference information:
Signal matter of the first node according to the Radio Link between the first node and one or more second nodes Information is measured, father node of the second node as the first node is therefrom selected specifically to can choose signal quality height In threshold value or highest second node as father node；
The first node indicates information according to the first kind of one or more second nodes, therefrom select one this Two nodes as father node, specifically selection strategy can be network side pre-configuration or system it is predefined, either What first node itself determined.
The first node determines configured father's section according to the father node identification information indicated in second class instruction information Point；
The first node indicates the first kind node identification information indicated in information according to second class, what determination was configured Father node.Specifically, according to second class indicate information in first kind node identification information, the first node determine indicated by First kind node be father node；Or the first node determines that some second class node is father node, and the second class node Corresponding first kind node is the first kind node of management node configuration, here, the second class node and the first kind section There is direct or indirect backhaul link connection between point.
The first node determines configured father node according to the father node identification information indicated in the preconfigured information；
The first node determines configured father's section according to the first kind node identification information indicated in the preconfigured information Point, specifically, according to the first kind node identification information indicated in the preconfigured information, which determines indicated be somebody's turn to do First kind node is father node；Or the first node determines that some second class node is father node, and the second class node phase The first kind node answered is the first kind node, here, is had between the second class node and the first kind node directly or indirectly Backhaul link connection.
Optionally, the signal quality of the Radio Link between first node measurement and the second node, comprising: pass through survey At least one the following signals for measuring second node transmission, obtains the Radio Link between the first node and the second node Signal quality information: system synchronization signal SS；System broadcasts signal PBCH；Channel state measurement reference signal CSI-RS.
Optionally, in the first kind instruction information of second node broadcast, including at least one following information: second section The first identifier information of point, the first identifier information are the unique identity information of the second node in a network；This second The second identifier information of node, the second identifier information are management node for identifying the second node；The of the second node Three identification informations, the third identification information are used to identify the identification information of the relevant first kind node of the second node, and herein the The relevant first kind node of two nodes can be first kind node or second node adjacent around second node inherently First kind node；Topology distance between the second node and the core network element, topology distance and implementation in present specification Hop count in example, the concept of the number of plies is comparable；The channel state information reference signals CSI-RS's of the second node matches confidence Breath；The backhaul link load capacity of the second node, wherein the backhaul link load capacity includes one that the second node is connected Or the load capacity of a plurality of backhaul link；The backhaul link resource configuration information of the second node, wherein the backhaul link resource is matched Set the resource allocation information of one or more backhaul link connected including the second node；One or more of the second node The first kind of a adjacent node indicates information.
Optionally, which is used to identify the identification information of the relevant first kind node of the second node, packet Include following one: when the second node is the second class node, the relevant first kind node of the second node refers to the second node Pass through the first kind node of backhaul link direct or indirect connection, wherein the second class node refers to do not have with core network element The node being directly connected to；
When the second node is first kind node, the relevant first kind node of the second node refers to the second node certainly Body.
Optionally, topology distance between the second node and core network element, including following one: the topology distance refers to In connection between the second node and the core network element, the quantity of the link of process, wherein the link of the process includes back Link between journey link and the first kind node and core network element；
The topology distance refers in the connection between the second node and the core network element, the number of the backhaul link of process Amount；
The topology distance refers in the connection between the second node and the core network element, the quantity of the node of process, Wherein, the node of the process includes first kind node and the second class node, wherein the second class node refers to and core network element The node not being directly connected to.Second node can indicate oneself level or hop count in backhaul link, the level or jump Number refers to that second node to the quantity of the backhaul link passed through between corresponding first kind node, can further be managed in conjunction with Fig. 3 The above-mentioned technical proposal of solution.
Optionally, the configuration information of the channel state information reference signals CSI-RS of the second node, including it is following at least One of: the period of the CSI-RS, the resource which uses, the sequence which uses, the antenna which uses Configuration information.
Optionally, the backhaul link load capacity of the second node, including at least one of: the second node is currently kept The backhaul link quantity of connection；The quantity for the child node that the second node currently connects, wherein the child node passes through second section Point is connected to the core network element；The quantity for the father node that the second node currently connects.
Optionally, the backhaul link resource configuration information of the second node, including at least one of:
The time domain and/or frequency domain resource configuration information of the backhaul link of the second node；
The money of access link between the stock number of the backhaul link of the second node and the second node and user equipment The ratio of source amount；
Accounting of the backhaul link resource amount of the second node in the total resources of the second node, wherein total money Source amount includes available resources total amount of the second node in backhaul link and access link；
The maximum available stock number of the backhaul link of the second node；
The ratio of the backhaul link maximum available resources of the second node, wherein the ratio of the resource refers to second section The ratio of the stock number of the stock number and access link of the backhaul link of point, or refer to the backhaul link resource of the second node Measure the accounting in the total resources of the second node.The ratio for the maximum available resources recorded in above-described embodiment, Ke Yili Solution is the maximum ratio for the resource for allowing to occupy.Stock number refers to available time-frequency and/or frequency domain resource amount on Radio Link, tool Body, the ratio of backhaul link resource amount and access link stock number refers to the second node on the backhaul link being connected directly The ratio of workable stock number in workable stock number and access link.
Optionally, which determines father node, including at least one of according to the father node reference information:
The first node obtains the first identifier information of the second node from first kind instruction information, when the second node First identifier information and second class instruction information in the father node identification information that indicates, or with the preconfigured information middle finger When the father node identification information shown is identical, which determines that the second node is the father node of the first node；
The first node obtains the second identifier information of the second node from first kind instruction information, when the second node Second identifier indicate the second node be management node when, the first node determine the second node be the first node father Node；
The first node obtains the third identification information of the second node from first kind instruction information, when the second node Third mark instruction the first kind node identification information, with the first kind node mark that indicates in second class instruction information Know information it is identical, or it is identical as the first kind node identification information indicated in the preconfigured information when, the first node determine The second node is the father node of the first node；
The first node obtains the topology distance of the second node from first kind instruction information, and first node selection is opened up Flutter the father node apart from the smallest second node for the first node；
The first node obtains the CSI-RS configuration information of the second node from first kind instruction information, detect this second The CSI-RS signal of node, obtain testing result, the second node which selects testing result optimal for this first The father node of node；The testing result for detecting CSI-RS signal is optimal, can be the CSI-RS of the multiple second nodes detected Signal quality is optimal in signal or signal quality is higher than certain numerical value.
The first node obtains the backhaul link load capacity of the second node, the first node from first kind instruction information The second node for selecting backhaul link load capacity optimal for the first node father node；
The first node obtains the backhaul link resource configuration information of the second node from first kind instruction information, this One node selects backhaul link resource to configure the optimal second node as the father node of the first node.
Optionally, which receives second class instruction information of management node transmission, comprising: receives the management The switching instruction that node is sent, interruption is connect with the backhaul link of the management node, and is indicated in information according to second class Instruction, determines father node, establishes backhaul link with identified father node and connect.You need to add is that being saved interrupting with management After the backhaul link connection of point, indicate that information determines father node according to the second class.
It is further illustrated below with reference to another embodiment of the application.
In embodiments herein, the entity of network side (base station as shown in figure 1) be can include but is not limited to are as follows: 5G system It unites base station (gNB, ng-eNB), evolved base station eNB, relay station RN, cell cooperative entity MCE, gateway GW, mobile management are set Standby MME, operational administrative and maintenance OAM manager, are specifically described by taking base station as an example below.
In 5G communication system, network side equipment of the base station as Radio Access Network, there are two types of types: gNB and ng- eNB.The two provides different types of service interface towards UE, and can connect and be realized between core net with 5G core net Data interaction.The two also may be collectively referred to as NG-RAN (NG Radio Access Network) node, the interface between base station, Interface i.e. between NG-RAN node is known as Xn interface.In the description in this application, it is illustrated by taking gNB as an example, ng-eNB is same Sample can apply any scheme of the application.
As shown in Figure 1, the UE (such as UE A) of subordinate's service is logical when gNB and core net are directly connected to (such as gNB A) It crosses access link Access link to connect with gNB A, the further information exchange realized by gNB A with core net.And it is right In gNB B and gNB C, due to not being directly connected to core net, then need to establish the backhaul link Backhaul with gNB A The information of the UE serviced (such as UE B, UE C) is forwarded by backhaul link, is connected indirectly to by gNB A by link connection Core net, to realize the information exchange between serviced UE and core net.
In this application, clear for description, there will be the base station being directly connected to be known as first kind node with core net, such as GNB A in Fig. 1, correspondingly, the base station not being directly connected to core net is known as the second class node, gNB B as shown in figure 1 and gNB C。
Since backhaul link interface is wireless interface, i.e., needs to establish between first kind node and the second class node and wirelessly connect It connects.In addition, also can establish backhaul link connection between multiple second class nodes.Fig. 3 is the base station according to the embodiment of the present application Between establish the schematic diagram one of backhaul link connection, as shown in figure 3, second class node node C can be another by being connected to One the second class node node B, and first kind node node A is connected indirectly to by node B, it is thus connected to core net. At this point, node A is known as the father node of node B, node B is known as the father node of node C, and node B is also referred to as the son of node A Node, node C are known as the child node of node B.It can be seen that first kind node can be used as the father node of the second class node, Second class node can also be used as the father node of another the second class node.
In actual 5G communication system, the deployment of base station may be more intensive, then for any one base station, surrounding All there may be multiple first kind nodes or the second class node, Fig. 4 is to establish backhaul between the base station according to the embodiment of the present application The schematic diagram two of link connection, as shown in figure 4, First hop backhual, which can be Chinese paraphrase first, jumps backhaul link, Second hop backhaul can Chinese be interpreted as the second jump backhaul link, at this point, for a base station, different fathers Node selection will affect the connection path between base station and core net, and the further information influenced between base station and core net is handed over Mutual efficiency, time delay, resource utilization etc..As shown in Figure 3, when node F selects node C for father node, then node F can lead to It crosses first jump (the first hop) backhaul link and is connected indirectly to core net；And when node F selects node D to save as father Point, then firstly the need of (the second hop) is jumped by second, backhaul link is connected to node D to node F, then passes through node The first of D and node A jumps back to journey link connection to core net.Obviously, in both path fashions, node F selects node C When for father node, the path of required process is shorter, and corresponding time delay also can be lower.Therefore rationally efficient father node selection has It is promoted conducive to the whole efficiency of system.
In 5G system, the second class node can be connected indirectly to core net, the second class node and by multi-hop link Backhaul link between a kind of node is known as the first jump backhaul link the first hop Backhaul link, in Fig. 4 Link between node A and node B.Correspondingly, the second class node being connected directly with first kind node and another second Backhaul link between class node is known as the second jump backhaul link the second hop Backhaul link, in Fig. 4 Link between node B and node E.And so on, can define third jump backhaul link, the forth jump backhaul link .... On the backhaul link of each jump, all there is the relationship of father node and child node.
In order to realize rationally efficient father node selection, present applicant proposes the method for a variety of determining father nodes, for for First node determines father node, is illustrated below with reference to specific example.
Method one
The signal quality of Radio Link between first node measurement and adjacent node selects father's section according to measurement result Point, and further connection is established with selected father node.
The link-quality of Radio Link directly affects the signal quality communicated on wireless links and information transmission effect Rate, thus according between first node and adjacent node radio link quality select father node, can effective guarantee it is selected The information transfer efficiency of backhaul link between father node and first node is conducive to improve resource utilization.
Here, adjacent node refers to other base stations around first node, including first kind base station and the second class base station.Phase Neighbors is referred to as second node as candidate father node here.
Specifically, first node can by measuring any one or more in lower column signal, realize to adjacent segments The measurement of the link-quality of Radio Link between point:
System synchronization signal SS (Synchronization Signal)；
System broadcasts signal PBCH (Physical broadcast channel)；
Channel state measurement pilot tone CSI-RS (Channel State Information Reference Signal).
The example above may be not limited to there are also the scheme of other measurement link-quality.
Since adjacent node is as base station, meeting is periodical or presses centainly one of above-mentioned signal of configuration transmission or more Kind, first node can be according to the transmission rule of corresponding signal, and blind Detecting receives, or receives and detected in above-mentioned signal in accordance with the instructions It is one or more, and by the measurement to received signal, obtain the wireless link channel matter between corresponding adjacent node The measurement result of amount.
Wherein, system synchronization signal SS includes primary synchronization signal PSS (Primary synchronization signal) With secondary synchronization signal SSS (Secondary synchronization signal).The transmission rule that SS and PBCH has system to define Resource collection then and is accordingly sent, therefore first node can receive by the blind Detecting in respective resources and obtain SS, and Obtain measurement result.
PBCH is sent by base station, carries the system broadcast information of base station, is similar to SS and is sent, the transmission defined with system Rule and transmission resource collection, therefore first node blind Detecting can receive one or more second on corresponding resource collection The PBCH of node, wherein demodulating pilot tone comprising PBCH, first node can demodulate pilot tone according to PBCH and carry out reception survey to PBCH Amount obtains measurement result.
The transmission resource of CSI-RS is configurable, then after first node needs to obtain the configuration information of corresponding CSI-RS, root Reception detection is carried out according to CSI-RS of the resource and relevant parameter indicated in configuration information to second node, and obtains measurement knot Fruit.
Further, first node obtains between each adjacent node according to the measurement to one or more adjacent nodes Backhaul link link quality measurement, and according to measurement result select father node, and attempt with selected father node Establish backhaul link connection.Preferably, a kind of selection strategy is that the second node for selecting respective backhaul link signal quality high is made For the father node of oneself.
Further, when first node and selected father node establish backhaul link failure, then first node can weigh The new Radio Link carried out between one or more second nodes measures, and selects father node；Or first node can be direct It using above-mentioned measurement result, selects another second node as father node, and attempts to carry out backhaul with selected father node Link connection.
The example one of method one
First node is newly deployed base station, after first node starting up, needs to search for discovery adjacent node, and from Middle selection father node establishes backhaul link connection, realizes the information exchange with core net.Illustrated for detecting SS in method one.
Fig. 5 is the base station measurement link-quality according to the example one of the embodiment of the present application method one and the side for selecting father node Method flow chart, as shown in figure 5, first node measures and selects the process of father node as follows:
Step 1: the synchronization signal SS sent around first node blind Detecting with the presence or absence of second node；
Step 2: first node detects the SS of n second node, and measures to the SS signal of n second node；
Step 3: the measurement based on step 2, first node obtain each backhaul link between corresponding n second node Link quality measurement；
Step 4: first node selects a second node as father node according to the measurement result of step 3；
Step 5: first node is established backhaul link with selected father node and is connect.
Wherein, when first node selects father node in step 4, the node that radio link quality is optimal in measurement result is selected As father node.
In step 5, first node can also be used as a UE, real to selected father node initiating random access procedure Now with the connection of father node.It is connect at this point, first node can also be claimed to establish Access link with father node.
Method two
The first kind that first node receives adjacent node indicates information, and indicates that the configuration in information refers to according to the first kind Show, selects optimal father node according to certain father node selection strategy, and further establish connection with selected father node.
Fig. 6 is the flow diagram that father node is selected according to the first node of the embodiment of the present application method two, such as Fig. 6 institute Show, the process of first node selection father node includes:
Step 1: first node detection receives the broadcast message of second node；
Step 2: first node detects the broadcast message of n second node, therefrom obtains each second node respectively The first kind indicates information；
Step 3: first node indicates information according to the first kind of n second node of acquisition, selects plan according to father node Slightly, select a second node as father node；
Step 4: first node is established backhaul link with selected father node and is connect；
Wherein, first kind instruction information is sent in the broadcast message of second node, includes finger relevant to backhaul link Show information, include at least following any one:
The identification information gNB ID of second node；
Identification information of the second node as management node；
The identification information of the first kind node of second node direct or indirect connection；
Hop count/level of second node；
The CSI-RS of second node is configured；
The backhaul link load capacity of second node；
The backhaul link resource of second node configures；
The relevant information of other second nodes:
Wherein, the identification information of second node refers to the identification information of this base station itself, such as the ID of second node, cell ID etc..First node can identify second node by the identification information of second node, and distinguish multiple second nodes.
When second node is management node, second node indicates it as management node in first kind instruction information Identification information.Management node refers to that this second node has the function of other adjacent nodes of management and permission, surrounding adjacent node It needs to carry out backhaul link connection or communication according to the configuration instruction of management node.When first node selects father node, if the Two nodes are management nodes, then there is this second node higher priority to be selected as father node.
When second node is the second class node, first kind section that second node can be indicated directly or is indirectly connected with The identification information of point, i.e. root node information, such as indicate the gNB ID of corresponding first kind node, cell ID etc..Work as second node When itself is first kind node, second node can indicate its identification information as first kind node.First node can be with By identify the corresponding first kind node of second node, as father node selection when reference, to select the corresponding first kind Root node of the node as core network access.
Second node can indicate that oneself topology distance in backhaul link network, topology distance refer to node in backhaul Logical reach in link topology between core net, can be with is defined as:
In connection between node and the core network element, the quantity of the link of process, wherein the link of the process Including the link between backhaul link and the first kind node and core network element；Alternatively, node and the core network element Between connection in, the quantity of the backhaul link of process；Alternatively, passing through in connection between node and the core network element Node quantity, wherein the node of the process includes first kind node and the second class node；Alternatively, be defined as level or Person's hop count, the level or hop count refer to second node to the quantity of the backhaul link passed through between corresponding first kind node. Such as in backhaul link structure shown in Fig. 4, node D is a second class node, by first kind node node A/node C is connected to core net, then node A/node C is known as the first hop node or the first hierarchy node, and corresponding node D is known as Second hop node or the second hierarchy node.Similar, node E can be described as third hop node or third hierarchy node.Second Hop count or level of the node in backhaul link refer to hierarchical position of this node in backhaul link, embody this node to core The quantity for the backhaul link that heart net needs to pass through.According to the level or hop count of second node, first node can determine the second section Position of the point in backhaul link structure, it is alternatively that the foundation of father node.For example, level or the smaller second node of hop count, Priority as father node is higher.
Second node can also indicate to indicate that the CSI-RS of itself is configured in information in the first kind, specifically include CSI-RS Period, resource, used sequence, antenna relevant configuration etc..First node is configured according to the CSI-RS of second node, can be with The CSI-RS signal of detection second node is received, thus realize the more accurate measurement to Radio Link between second node, And measurement result to be used for the judgement of father node selection.
The backhaul link load capacity of second node can be embodied: second node by any one or more following mode The current backhaul link quantity for keeping connection；The child node quantity that second node currently connects；The father that second node currently connects Number of nodes；The backhaul link resource of second node configures, such as the backhaul link time domain and/or frequency domain resource of second node are matched It sets or the backhaul link time domain and/or frequency domain resource of second node configure and the time domain and/or frequency domain resource of access link are matched The backhaul link time domain and/or frequency domain resource of the ratio or second node set configure the ratio in total resources；Second section The backhaul link maximum available volume of resources of point, or maximum available resources ratio.By the backhaul link load capacity of second node, First node may determine that the capacity for the backhaul link communication that second node can be provided as father node, it is alternatively that father node Foundation.
The backhaul link resource configuration of second node refers in all available time domains of second node and frequency domain resource, uses In the resource distribution of backhaul link, it may for example comprise the backhaul link time-domain resource and/or frequency domain resource of second node configure.It is logical The backhaul link resource configuration of second node is crossed, first node may determine that the backhaul that second node can be provided as father node The capacity of link communication, it is alternatively that the foundation of father node.
The relevant information of other adjacent nodes refers to that second node can indicate to indicate week in information in the first kind of itself The corresponding first kind instruction information for enclosing other nodes, that is, forward other adjacent nodes as the above- mentioned information of second node.Second Node indicates the relevant information of other adjacent nodes, is conducive to first node and obtains the information of more adjacent nodes, to be Father node selection provides more judgement foundations.
First node receives the first kind from second node and indicates information, therefrom obtains any one or more in above- mentioned information , further according to certain father node selection strategy, select an adjacent node as father node, and trial with it is selected Father node establish backhaul link connection.
Wherein, father node selection strategy can be predefined by system, and network side is pre-configured, or be base station implementing method. Father node selection strategy can be any one or more in conjunction with obtaining in above- mentioned information, it is alternatively that the foundation of judgement.
Similar, when first node and selected father node establish backhaul link failure, then first node can be again Run father node selection strategy, reselect another adjacent node as father node, and attempt and selected father node into The connection of row backhaul link.
The example two of method two
First node receives the system broadcast message of surrounding adjacent node, therefrom obtains the first kind and indicates information, wherein wrapping The instruction of backhaul link hop count containing second node.First node selects hop count most according to the hop count of multiple second nodes around Few second node is established backhaul link with father node and is connect as father node, realizes the information exchange with core net.
Fig. 7 is according to the architecture diagram of the base station selected father node of the example two of the embodiment of the present application method two, such as Fig. 7 institute Show, node B is first node, and a father node to be selected to realize the connection with core net.Node B is obtained respectively by detection Obtained the first kind instruction information of adjacent second node node A and node C.Wherein, the first kind of node A indicates information Middle instruction, node A be the first hop node, or the topology distance of instruction node A is 1, that is, has and be directly connected to core net, It is indicated in the first kind instruction information of node C, node C is the second hop node, or the topology distance of instruction node C is 2, i.e., Being indirectly connected with by some first kind node is needed, is connect with core net.First node is according to the predefined father node of system Selection strategy selects the less node of hop count or the smaller node of topology distance as father node, that is, selects node A for father's section Point.
Further, node B initiates the connection foundation request to node A, establishes backhaul link with node A and connect.Or Person, node B execute random access procedure, establish Access link with father node and connect.
The example three of method two
First node receives the system broadcast message of surrounding adjacent node, therefrom obtains the first kind and indicates information, wherein wrapping Identification information containing second node.First node identifies the selection as management section according to the identification information of multiple second nodes around The second node of point is established backhaul link with father node and is connect as father node, realizes the information exchange with core net.
Fig. 8 is the architecture diagram that father node is selected according to the first node of the example three of the embodiment of the present application method two, such as Fig. 8 Shown, node E is first node, and a father node to be selected to realize the connection with core net.Node E is by detection, respectively Obtain the first kind instruction information of adjacent node node B and node D.Wherein, the first kind of node D indicates information middle finger Show, node D is backhaul link management node, has the management function to backhaul link.First node is predefined according to system Father node selection strategy, selects management node as father node, that is, selects node D for father node.
Further, node E initiates the connection foundation request to node D, establishes backhaul link with node D and connect.
The example four of method two
First node receives the system broadcast message of surrounding second node, therefrom obtains the first kind and indicates information, wherein wrapping CSI-RS configuration information containing second node.Further, first node detection receives the CSI-RS of each second node, according to The measurement result of CSI-RS selects the higher second node of the radio link quality between first node as father node, and Backhaul link is established with father node to connect, and realizes the information exchange with core net.
Fig. 9 is the architecture diagram that father node is selected according to the first node of the example four of the embodiment of the present application method two, such as Fig. 9 Shown, node E is first node, and a father node to be selected to realize the connection with core net.Node E is by detection, respectively Obtain the first kind instruction information of adjacent node node A, node B and node D.Wherein, each second node indicates respectively From CSI-RS configuration.First node is configured according to indicated CSI-RS, receives the CSI-RS letter of each second node respectively Number, the radio link quality between measurement and node A, node B, node D.The measurement result of first node is, with node D Between radio link conditions it is optimal, then the node that first node selects channel condition optimal is as father node, i.e. selection node D is father node.
Further, node E initiates the connection foundation request to node D, establishes backhaul link with node D and connect.
Method three
The second class that first node receives management node indicates information, wherein indicating management node as first node configuration Parent information, or the first kind nodal information of instruction configuration, further, first node is established with the father node that is configured Connection, or according to indicated first kind node, determine father node, and establish connection with determining father node.
Figure 10 is the method flow diagram one that father node is determined according to the first node of the embodiment of the present application method three, such as Figure 10 Shown, first node determines that the process of father node includes:
Step 1: first node receives the second class and indicates that information, second class instruction information are sent by management node；
Step 2: first node obtains the identification information of configured father node from the second class instruction information；
Step 3: first node is established backhaul link with the father node configured and is connect.
Figure 11 is the method flow diagram two that father node is determined according to the first node of the embodiment of the present application method three, such as Figure 11 Shown, first node determines that the process of father node includes:
Step 1: the second class that first node receives management node indicates information；
Step 2: first node obtains the mark of the first kind node of management node configuration instruction from the second class instruction information Know information；
Step 3: first node determines father node according to the first kind node of instruction；
Step 4: first node is established backhaul link with identified father node and is connect.
Wherein, the second class indicates that information is indicated to first node by high-level signaling by management node, such as using wireless The instruction of resources control RRC (Radio Resource Control) signaling.
It is included as the identification information of the father node of first node configuration, father node as configured in second class instruction information GNB ID, cell ID etc..Based on this identification information, first node can uniquely determine configured father node.Alternatively, the It is included as the identification information of the first kind node of first node configuration in two classes instruction information, first kind node as configured GNB ID, cell ID etc..Based on this identification information, first node can uniquely determine configured first kind node.
Further, first node is established backhaul link with the father node configured and is connect, can by random access to Father node initiates the connection, or according to the configuration of management node, is initiated the connection using noncompetitive random access to father node, or Person realizes the connection with father node by handoff procedure.
Further, the method can be also used for the father node of management node configuration adjustment first node.Specifically, current Node has corresponding father node, and establishes backhaul link with father node and connect, and management node can be reconfigured for first node Father node of another base station as first node is set, and indicates the father node mark that first node reconfigures, and indicate first Node and the father node reconfigured establish connection.Further, management node also can indicate that first node interrupts and father before The connection of node.
The example five of method three
There are backhaul link connection, the backhaul links of management node control management first node for first node and management node Connection and communication, including father node is configured or reconfigured for first node.
Figure 12 is the architecture diagram that father node is selected according to the first node of the example five of the embodiment of the present application method three, is such as schemed Shown in 12, node E is first node, and node A is management node, and node E determines that father saves according to the configuration instruction of node A Point.It is node E instruction node B is father node that Node A passes through RRC information first, then node E indicated according to node A the Two classes indicate information, establish backhaul link with node B and connect, and carry out data interaction with core net.
Due to the variation of backhaul link overall load, node B cannot as the service that the father node of node E is capable of providing Meet the needs of node E, is then requested by node E or the control of management node, node A indicate update second to node E Class indicates information, is that reconfigure node D be father node to node E.Node E establishes the company with node D according to instruction information It connects, and interrupts the connection with original father node node B.
The father node selection that configuration first node is controlled by management node, can be uniformly coordinated by the management node concentrated The connection relationship of backhaul link, and then load balancing and the resource distribution of backhaul link are managed, reach higher resource utilization, And system performance.
The example six of method three
There are backhaul link connection, the backhaul links of management node control management first node for first node and management node Connection and communication, including corresponding first kind node is configured for first node.
Illustrate that the another of the present processes three is realized by taking topological structure shown in Fig. 4 as an example.As shown in figure 4, node E is first node, and node D is management node, and node E determines father node according to the configuration instruction of node D.
Node D is that node E indicates that corresponding first kind node is node A by RRC information, then node E should be selected Using node A as the path of root node, connection is established with core net.Node E is according to configuration instruction, firstly, in adjacent node Whether search can be directly connected to node A.If node E and node A are adjacent node, node E directly establishes and The connection of node A；When node E can not directly receive the signal of node A, then node E is in the second adjacent class node searching, The first kind node for determining node B connection is node A, then node E determines that node B is father node, is established back with node B Journey link connection, to be connected indirectly to node A.Further, node E carries out data friendship by father node and core net Mutually.
Method four
First node determines father node according to pre-configuration, and further establishes connection with the father node of pre-configuration.
It since base station belongs to network side node, is managed collectively and is disposed by operator, then base station itself can be preconfigured, packet It includes and is pre-configured corresponding father node or corresponding first kind node for first node.Here, pre-configuration can be passed through by network side OAM is issued to be written in the preconfigured information that configuration information or base station itself carry.By being pre-configured father's section for first node Point can faster realize that the connection of first node and father node is established, and the process of first node selection father node is avoided to need The time delay wanted, while be conducive to backhaul link is uniformly controlled management.Or when being pre-configured corresponding first kind node, first Node need to search for configured first kind node, as the father node of oneself in adjacent node；Alternatively, first node selects The second node for thering is direct or indirect backhaul link to connect with the first kind node configured as father node, by with father node Backhaul link connection, be connected indirectly to configured first kind node, and realize the connection with core net.
The example seven of method four
First node is written into preconfigured information when network is disposed, and preconfigured information is written here and refers in first node Software memory in relevant to the first node operation configuration information of write-in, including father node identification information.
On first node after electricity operation, the preconfigured information in memory itself is read, obtains father node identification information.Into One step, first node searches for configured father node according to the parent information of pre-configuration in neighboring community.First node The broadcast message of adjacent node is received by detection, wherein identifying the identification information of each adjacent node, then first node can To determine the father node wherein whether configured.When first node detects configured father node in adjacent node, to Father node initiates the connection foundation, establishes backhaul link with father node and connect.When first node be not detected in adjacent node it is pre- When the father node of configuration, then first node can use any one mode of the above method one into method three, determine that father saves Point, and backhaul link connection is established, realize the communication for arriving core net.
By the embodiment of the present application, the side of father node is determined by measurement and/or according to configuration instruction using first node Method determines father node and establishes Radio Link connection therewith, and by the relay forwarding of father node, realizes leading to core net Letter.It solves in 5G communication system, the problem of base station can not effectively determine backhaul link father node.By the measurement of base station or The information of adjacent node indicates, determines backhaul link father node, and establish backhaul link with father node and connect.It can by the method To realize the foundation of backhaul link between base station, reach flexible and efficient backhaul link tissue, is conducive to improve resource utilization, it is full Sufficient UE business demand.
Through the above description of the embodiments, those skilled in the art can be understood that according to above-mentioned implementation The method of example can be realized by means of software and necessary general hardware platform, naturally it is also possible to by hardware, but it is very much In the case of the former be more preferably embodiment.Based on this understanding, the technical solution of the application is substantially in other words to existing The part that technology contributes can be embodied in the form of software products, which is stored in a storage In medium (such as ROM/RAM, magnetic disk, CD), including some instructions are used so that a terminal device (can be mobile phone, calculate Machine, server or network equipment etc.) execute method described in each embodiment of the application.
Embodiment two
Additionally provide a kind of device of determining father node in the present embodiment, the device is for realizing above-described embodiment and excellent Embodiment is selected, the descriptions that have already been made will not be repeated.As used below, predetermined function may be implemented in term " module " Software and/or hardware combination.Although device described in following embodiment is preferably realized with software, hardware, Or the realization of the combination of software and hardware is also that may and be contemplated.
According to one embodiment of the application, a kind of device of determining father node is provided, is applied to first node, packet It includes:
First obtain module, for obtaining father node reference information, wherein the father node reference information include with down toward It is one of few:
The signal quality information of Radio Link between the first node and second node；
The first kind of the second node broadcast indicates information；
The second class that management node is sent indicates information；
Preconfigured information；
First determining module is connected to described first and obtains module, for determining father according to the father node reference information Node；
Link block is connected to first determining module, connect for establishing backhaul link with the father node.
By adopting the above technical scheme, the first acquisition module is for obtaining father node reference information, wherein the father node ginseng Examining information includes at least one of: the signal quality information of the Radio Link between the first node and second node；Institute State the first kind instruction information of second node broadcast；The second class that management node is sent indicates information；Preconfigured information；First really Cover half block is used to determine father node according to the father node reference information.By adopting the above technical scheme, four kinds are given at least really The scheme for determining father node solves and lacks the scheme for establishing backhaul link between the base station for being suitable for new system in the related technology Problem establishes backhaul link using determining father node, convenient for carrying out data transmission between base station or node.
Optionally, the first acquisition module further includes at least one of:
First measuring unit, for measuring the signal matter of the Radio Link between one or more second nodes Amount obtains the signal quality information of the Radio Link between the first node and one or more second nodes；
First receiving unit, the broadcast message sent for receiving one or more second nodes, including institute State first kind instruction information；
Second receiving unit indicates information for receiving second class that the management node is sent, wherein described the Two classes instruction packet contains the identification information for the father node that the management node is first node configuration, and/or, it is described Management node is the identification information of the first kind node of first node configuration；
First determination unit, for determining the preconfigured information, wherein the preconfigured information is referred to by network side configuration Show or be pre-configured by the first node, wherein the preconfigured information is included as father's section that the first node is pre-configured The identification information of point, and/or the identification information of the first kind node for first node pre-configuration；
Wherein, the first kind node refers to there is the node being directly connected to core network element.
Optionally, first determining module is also used at least one of:
For the signal quality according to the Radio Link between the first node and one or more second nodes Information therefrom selects father node of the second node as the first node；
For indicating information according to the first kind of one or more second nodes, one described the is therefrom selected Two nodes are as father node；
For determining configured father node according to the father node identification information indicated in second class instruction information；
For determining configured father's section according to the first kind node identification information indicated in second class instruction information Point；
For determining configured father node according to the father node identification information indicated in the preconfigured information；
For determining configured father node according to the first kind node identification information indicated in the preconfigured information.
Optionally, first measuring unit be also used to by measure following signals that the second node is sent at least it One, obtain the signal quality information of the Radio Link between the first node and the second node:
System synchronization signal SS；
System broadcasts signal PBCH；
Channel state measurement reference signal CSI-RS.
Optionally, in the first kind instruction information of the second node broadcast, including at least one following information:
The first identifier information of the second node, the first identifier information be the second node in a network only One identification information；
The second identifier information of the second node, the second identifier information is for identifying the second node as management Node；
The third identification information of the second node, the third identification information are relevant for identifying the second node The identification information of first kind node；
Topology distance between the second node and the core network element；
The configuration information of the channel state information reference signals CSI-RS of the second node；
The backhaul link load capacity of the second node, wherein the backhaul link load capacity includes the second node The load capacity of one or more backhaul link connected；
The backhaul link resource configuration information of the second node, wherein the backhaul link resource configuration includes described The resource allocation information for one or more backhaul link that second node is connected；
The first kind of one or more adjacent nodes of the second node indicates information.
Optionally, the third identification information is used to identify the mark letter of the relevant first kind node of the second node Breath, including following one:
When the second node is the second class node, the relevant first kind node of the second node refers to second section Point passes through the first kind node of backhaul link direct or indirect connection, wherein the second class node refers to and core network element The node not being directly connected to；
When the second node is first kind node, the relevant first kind node of the second node refers to second section Point itself.
Optionally, topology distance between the second node and core network element, including following one:
The topology distance refers in the connection between the second node and the core network element, the link of process Quantity, wherein the link of the process includes the link between backhaul link and the first kind node and core network element；
The topology distance refers in the connection between the second node and the core network element, the backhaul chain of process The quantity on road；
The topology distance refers in the connection between the second node and the core network element, the node of process Quantity, wherein the node of the process includes first kind node and the second class node, wherein the second class node refer to The node that core network element is not directly connected to.
Optionally, the configuration information of the channel state information reference signals CSI-RS of the second node, including with down toward It is one of few:
The period of the CSI-RS, the resource that the CSI-RS is used, the sequence that the CSI-RS is used, the CSI-RS The antenna configuration information used.
Optionally, the backhaul link load capacity of the second node, including at least one of:
The second node currently keeps the backhaul link quantity of connection；
The quantity for the child node that the second node currently connects, wherein the child node is connected by the second node It is connected to the core network element；
The quantity for the father node that the second node currently connects.
Optionally, the backhaul link resource configuration information of the second node, including at least one of:
The time domain and/or frequency domain resource configuration information of the backhaul link of the second node；
Access link between the stock number of the backhaul link of the second node and the second node and user equipment Stock number ratio；
Accounting of the backhaul link resource amount of the second node in the total resources of the second node, wherein institute Stating total resources includes available resources total amount of the second node in backhaul link and access link；
The maximum available stock number of the backhaul link of the second node；
The ratio of the backhaul link maximum available resources of the second node, wherein the ratio of the resource refers to described The ratio of the stock number of the stock number and access link of the backhaul link of second node, or refer to the backhaul of the second node Accounting of the link circuit resource amount in the total resources of the second node.
Optionally, first determination is also used at least one of:
For when the father node mark indicated in the first identifier information of the second node and second class instruction information Know information, or it is identical as the father node identification information indicated in the preconfigured information when, determine the second node for institute State the father node of first node；
For determining described second when the second identifier of the second node indicates that the second node is management node Node is the father node of the first node；
The identification information of the first kind node for the third mark instruction when the second node, with described second The first kind node identification information that indicates is identical in class instruction information, or with the first kind section that is indicated in the preconfigured information When point identification information is identical, determine that the second node is the father node of the first node；
For the topology distance according to the second node, determine that the smallest second node of topology distance is described the The father node of one node；
For the CSI-RS configuration information according to the second node, the CSI-RS signal of the second node is detected, is obtained Testing result is obtained, determines that the optimal second node of testing result is the father node of the first node；
For the backhaul link load capacity according to the second node, determine backhaul link load capacity it is optimal described second Node is the father node of the first node；
For the backhaul link resource configuration information according to the second node, it is optimal to determine that backhaul link resource configures The second node is the father node of the first node.
Optionally, second receiving unit is also used to receive the switching instruction that the management node is sent, and described first Determining module is also used to interrupt and connect with the backhaul link of the management node, and indicates the finger in information according to second class Show, determine father node, the link block is also used to establish backhaul link with identified father node and connect.
It should be noted that above-mentioned modules can be realized by software or hardware, for the latter, Ke Yitong Following manner realization is crossed, but not limited to this: above-mentioned module is respectively positioned in same processor；Alternatively, above-mentioned modules are with any Combined form is located in different processors.
Embodiment three
According to another embodiment of the application, a kind of storage medium is additionally provided, meter is stored in the storage medium Calculation machine program, wherein the computer program is arranged to execute the step in any of the above-described embodiment of the method when operation.
Example IV
According to another embodiment of the application, a kind of electronic device, including memory and processor are additionally provided, it is described Computer program is stored in memory, the processor is arranged to run the computer program to execute any of the above-described Step in embodiment of the method.
Obviously, those skilled in the art should be understood that each module of above-mentioned the application or each step can be with general Computing device realize that they can be concentrated on a single computing device, or be distributed in multiple computing devices and formed Network on, optionally, they can be realized with the program code that computing device can perform, it is thus possible to which they are stored It is performed by computing device in the storage device, and in some cases, it can be to be different from shown in sequence execution herein Out or description the step of, perhaps they are fabricated to each integrated circuit modules or by them multiple modules or Step is fabricated to single integrated circuit module to realize.It is combined in this way, the application is not limited to any specific hardware and software.
The foregoing is merely preferred embodiment of the present application, are not intended to limit this application, for the skill of this field For art personnel, various changes and changes are possible in this application.Within the spirit and principles of this application, made any to repair Change, equivalent replacement, improvement etc., should be included within the scope of protection of this application.

Claims (26)

1. a kind of method of determining father node characterized by comprising
First node obtains father node reference information, wherein the father node reference information includes at least one of:
The signal quality information of Radio Link between the first node and second node；
The first kind of the second node broadcast indicates information；
The second class that management node is sent indicates information；
Preconfigured information；
The first node determines father node according to the father node reference information, and establishes backhaul link with the father node and connect It connects.
2. the method according to claim 1, wherein the first node obtains the father node reference information, Including at least one of:
The signal quality of Radio Link between first node measurement and one or more second nodes, described in acquisition The signal quality information of Radio Link between first node and one or more second nodes；
The first node receives the broadcast message that one or more second nodes are sent, and refers to including the first kind Show information；
The first node receives second class instruction information that the management node is sent, wherein second class instruction letter Breath includes the identification information for the father node that the management node is first node configuration, and/or, the management node is The identification information of the first kind node of the first node configuration；
The first node determines the preconfigured information, wherein the preconfigured information by network side configuration instruction or by The first node is pre-configured, wherein the preconfigured information is included as the mark for the father node that the first node is pre-configured Information, and/or the identification information of the first kind node for first node pre-configuration；
Wherein, the first kind node refers to there is the node being directly connected to core network element.
3. method according to claim 1 or 2, which is characterized in that the first node is according to the father node with reference to letter It ceases and determines father node, including at least one of:
Signal of the first node according to the Radio Link between the first node and one or more second nodes Quality information therefrom selects father node of the second node as the first node；
The first node indicates information according to the first kind of one or more second nodes, therefrom selects an institute Second node is stated as father node；
The first node determines configured father's section according to the father node identification information indicated in second class instruction information Point；
The first node indicates the first kind node identification information indicated in information according to second class, what determination was configured Father node；
The first node determines configured father node according to the father node identification information indicated in the preconfigured information；
The first node determines configured father's section according to the first kind node identification information indicated in the preconfigured information Point.
4. according to the method described in claim 2, it is characterized in that, between first node measurement and the second node The signal quality of Radio Link, comprising:
By measuring at least one the following signals that the second node is sent, the first node and the second node are obtained Between Radio Link signal quality information:
System synchronization signal SS；
System broadcasts signal PBCH；
Channel state measurement reference signal CSI-RS.
5. according to the method described in claim 2, it is characterized in that, the second node broadcast the first kind instruction information in, Including at least one following information:
The first identifier information of the second node, the first identifier information are the unique body of the second node in a network Part identification information；
The second identifier information of the second node, the second identifier information is for identifying the second node as management section Point；
The third identification information of the second node, the third identification information is for identifying the second node relevant first The identification information of class node；
Topology distance between the second node and the core network element；
The configuration information of the channel state information reference signals CSI-RS of the second node；
The backhaul link load capacity of the second node, wherein the backhaul link load capacity includes company, the second node institute The load capacity of one or more backhaul link connect；
The backhaul link resource configuration information of the second node, wherein the backhaul link resource configuration includes described second The resource allocation information for one or more backhaul link that node is connected；
The first kind of one or more adjacent nodes of the second node indicates information.
6. according to the method described in claim 5, it is characterized in that, the third identification information is for identifying the second node The identification information of relevant first kind node, including following one:
When the second node is the second class node, the relevant first kind node of the second node refers to that the second node is logical Cross the first kind node of backhaul link direct or indirect connection, wherein the second class node refers to do not have with core network element The node being directly connected to；
When the second node is first kind node, the relevant first kind node of the second node refer to the second node from Body.
7. according to the method described in claim 5, it is characterized in that, between the second node and core network element topology away from From, including following one:
The topology distance refers in the connection between the second node and the core network element, the number of the link of process Amount, wherein the link of the process includes the link between backhaul link and the first kind node and core network element；
The topology distance refers in the connection between the second node and the core network element, the backhaul link of process Quantity；
The topology distance refers in the connection between the second node and the core network element, the number of the node of process Amount, wherein the node of the process includes first kind node and the second class node, wherein the second class node refers to and core The node that heart network element is not directly connected to.
8. according to the method described in claim 5, it is characterized in that, the channel state information reference signals of the second node The configuration information of CSI-RS, including at least one of:
The period of the CSI-RS, the resource that the CSI-RS is used, the sequence that the CSI-RS is used, the CSI-RS are used Antenna configuration information.
9. according to the method described in claim 5, it is characterized in that, the backhaul link load capacity of the second node, including with It is at least one lower:
The second node currently keeps the backhaul link quantity of connection；
The quantity for the child node that the second node currently connects, wherein the child node is connected to by the second node The core network element；
The quantity for the father node that the second node currently connects.
10. according to the method described in claim 5, it is characterized in that, the backhaul link resource configuration information of the second node, Including at least one of:
The time domain and/or frequency domain resource configuration information of the backhaul link of the second node；
The money of access link between the stock number of the backhaul link of the second node and the second node and user equipment The ratio of source amount；
Accounting of the backhaul link resource amount of the second node in the total resources of the second node, wherein described total Stock number includes available resources total amount of the second node in backhaul link and access link；
The maximum available stock number of the backhaul link of the second node；
The ratio of the backhaul link maximum available resources of the second node, wherein the ratio of the resource refers to described second The ratio of the stock number of the stock number and access link of the backhaul link of node, or refer to the backhaul link of the second node Accounting of the stock number in the total resources of the second node.
11. according to the method described in claim 3, it is characterized in that, the first node is according to the father node reference information Determine father node, including at least one of:
The first node obtains the first identifier information of the second node from first kind instruction information, when second section The father node identification information that indicates in the first identifier information of point and second class instruction information, or with the prewired confidence When the father node identification information indicated in breath is identical, the first node determines that the second node is the father of the first node Node；
The first node obtains the second identifier information of the second node from first kind instruction information, when second section When the second identifier of point indicates that the second node is management node, the first node determines that the second node is described the The father node of one node；
The first node obtains the third identification information of the second node from first kind instruction information, when second section The identification information of the first kind node of the third mark instruction of point, with the first kind indicated in second class instruction information Node identification information is identical, or it is identical as the first kind node identification information indicated in the preconfigured information when, described One node determines that the second node is the father node of the first node；
The first node obtains the topology distance of the second node, the first node selection from first kind instruction information The smallest second node of topology distance is the father node of the first node；
The first node obtains the CSI-RS configuration information of the second node from first kind instruction information, detects described the The CSI-RS signal of two nodes, obtain testing result, the second node that the first node selects testing result optimal for The father node of the first node；
The first node obtains the backhaul link load capacity of the second node, the first segment from first kind instruction information Point select backhaul link load capacity optimal the second node for the first node father node；
The first node obtains the backhaul link resource configuration information of the second node from first kind instruction information, described First node selects backhaul link resource to configure the optimal second node as the father node of the first node.
12. according to the method described in claim 2, it is characterized in that, the first node receives what the management node was sent Second class indicates information, comprising:
The switching instruction that the management node is sent is received, interruption is connect with the backhaul link of the management node, and according to institute The instruction in the second class instruction information is stated, father node is determined, establishes backhaul link with identified father node and connect.
13. a kind of device of determining father node, which is characterized in that be applied to first node, comprising:
First obtain module, for obtaining father node reference information, wherein the father node reference information include it is following at least it One:
The signal quality information of Radio Link between the first node and second node；
The first kind of the second node broadcast indicates information；
The second class that management node is sent indicates information；
Preconfigured information；
First determining module, for determining father node according to the father node reference information；
Link block is connect for establishing backhaul link with the father node.
14. device according to claim 13, which is characterized in that it is described first acquisition module further include it is following at least it One:
First measuring unit is obtained for measuring the signal quality of the Radio Link between one or more second nodes Obtain the signal quality information of the Radio Link between the first node and one or more second nodes；
First receiving unit, the broadcast message sent for receiving one or more second nodes, including described the One kind instruction information；
Second receiving unit indicates information for receiving second class that the management node is sent, wherein second class Indicate that packet contains the identification information for the father node that the management node is first node configuration, and/or, the management Node is the identification information of the first kind node of first node configuration；
First determination unit, for determining the preconfigured information, wherein the preconfigured information by network side configuration instruction or Person is pre-configured by the first node, wherein the preconfigured information is included as the father node that the first node is pre-configured Identification information, and/or the identification information of the first kind node for first node pre-configuration；
Wherein, the first kind node refers to there is the node being directly connected to core network element.
15. device described in 3 or 14 according to claim 1, which is characterized in that first determining module be also used to it is following at least One of:
For the signal quality information according to the Radio Link between the first node and one or more second node, Therefrom select father node of the second node as the first node；
For indicating information according to the first kind of one or more second nodes, second section is therefrom selected Point is used as father node；
For determining configured father node according to the father node identification information indicated in second class instruction information；
For determining configured father node according to the first kind node identification information indicated in second class instruction information；
For determining configured father node according to the father node identification information indicated in the preconfigured information；
For determining configured father node according to the first kind node identification information indicated in the preconfigured information.
16. device according to claim 14, which is characterized in that first measuring unit is also used to by described in measurement At least one the following signals that second node is sent, obtains the Radio Link between the first node and the second node Signal quality information:
System synchronization signal SS；
System broadcasts signal PBCH；
Channel state measurement reference signal CSI-RS.
17. device according to claim 14, which is characterized in that the first kind of the second node broadcast indicates information In, including at least one following information:
The first identifier information of the second node, the first identifier information are the unique body of the second node in a network Part identification information；
The second identifier information of the second node, the second identifier information is for identifying the second node as management section Point；
The third identification information of the second node, the third identification information is for identifying the second node relevant first The identification information of class node；
Topology distance between the second node and the core network element；
The configuration information of the channel state information reference signals CSI-RS of the second node；
The backhaul link load capacity of the second node, wherein the backhaul link load capacity includes company, the second node institute The load capacity of one or more backhaul link connect；
The backhaul link resource configuration information of the second node, wherein the backhaul link resource configuration includes described second The resource allocation information for one or more backhaul link that node is connected；
The first kind of one or more adjacent nodes of the second node indicates information.
18. device according to claim 17, which is characterized in that the third identification information is for identifying second section The identification information of the relevant first kind node of point, including following one:
When the second node is the second class node, the relevant first kind node of the second node refers to that the second node is logical Cross the first kind node of backhaul link direct or indirect connection, wherein the second class node refers to do not have with core network element The node being directly connected to；
When the second node is first kind node, the relevant first kind node of the second node refer to the second node from Body.
19. device according to claim 17, which is characterized in that between the second node and core network element topology away from From, including following one:
The topology distance refers in the connection between the second node and the core network element, the number of the link of process Amount, wherein the link of the process includes the link between backhaul link and the first kind node and core network element；
The topology distance refers in the connection between the second node and the core network element, the backhaul link of process Quantity；
The topology distance refers in the connection between the second node and the core network element, the number of the node of process Amount, wherein the node of the process includes first kind node and the second class node, wherein the second class node refers to and core The node that heart network element is not directly connected to.
20. device according to claim 17, which is characterized in that the channel state information reference signals of the second node The configuration information of CSI-RS, including at least one of:
The period of the CSI-RS, the resource that the CSI-RS is used, the sequence that the CSI-RS is used, the CSI-RS are used Antenna configuration information.
21. device according to claim 17, which is characterized in that the backhaul link load capacity of the second node, including At least one of:
The second node currently keeps the backhaul link quantity of connection；
The quantity for the child node that the second node currently connects, wherein the child node is connected to by the second node The core network element；
The quantity for the father node that the second node currently connects.
22. device according to claim 17, which is characterized in that the backhaul link resource of the second node matches confidence Breath, including at least one of:
The time domain and/or frequency domain resource configuration information of the backhaul link of the second node；
The money of access link between the stock number of the backhaul link of the second node and the second node and user equipment The ratio of source amount；
Accounting of the backhaul link resource amount of the second node in the total resources of the second node, wherein described total Stock number includes available resources total amount of the second node in backhaul link and access link；
The maximum available stock number of the backhaul link of the second node；
The ratio of the backhaul link maximum available resources of the second node, wherein the ratio of the resource refers to described second The ratio of the stock number of the stock number and access link of the backhaul link of node, or refer to the backhaul link of the second node Accounting of the stock number in the total resources of the second node.
23. device according to claim 15, which is characterized in that first determining module be also used to it is following at least it One:
For believing when the father node mark indicated in the first identifier information of the second node and second class instruction information Breath, or it is identical as the father node identification information indicated in the preconfigured information when, determine that the second node is described the The father node of one node；
For determining the second node when the second identifier of the second node indicates that the second node is management node For the father node of the first node；
The identification information of the first kind node for the third mark instruction when the second node, refers to second class Show that the first kind node identification information indicated in information is identical, or with the first kind node mark that is indicated in the preconfigured information When knowledge information is identical, determine that the second node is the father node of the first node；
For the topology distance according to the second node, determine that the smallest second node of topology distance is the first segment The father node of point；
For the CSI-RS configuration information according to the second node, the CSI-RS signal of the second node is detected, is examined Result is surveyed, determines that the optimal second node of testing result is the father node of the first node；
For the backhaul link load capacity according to the second node, the optimal second node of backhaul link load capacity is determined For the father node of the first node；
For the backhaul link resource configuration information according to the second node, it is optimal described to determine that backhaul link resource configures Second node is the father node of the first node.
24. device described in 3 or 14 according to claim 1, which is characterized in that
Second receiving unit is also used to receive the switching instruction that the management node is sent；
First determining module is also used to interrupt and connect with the backhaul link of the management node, and is referred to according to second class Show the instruction in information, determines father node；
The link block is also used to establish backhaul link with identified father node and connect.
25. a kind of storage medium, which is characterized in that be stored with computer program in the storage medium, wherein the computer Program is arranged to execute method described in any one of claim 1 to 12 when operation.
26. a kind of electronic device, including memory and processor, which is characterized in that be stored with computer journey in the memory Sequence, the processor are arranged to run the computer program to execute described in any one of claim 1 to 12 Method.
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CN112822723A (en) * 2021-01-15 2021-05-18 重庆邮电大学 Mobile node fast switching method for 6TiSCH network
CN113179509A (en) * 2021-04-13 2021-07-27 珠海泰芯半导体有限公司 Self-networking method and device based on WiFi, storage medium and wireless node
WO2022027445A1 (en) * 2020-08-06 2022-02-10 Lenovo (Beijing) Limited Method and apparatus for determining timing advance value

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US9979626B2 (en) * 2009-11-16 2018-05-22 Ruckus Wireless, Inc. Establishing a mesh network with wired and wireless links
CN106034343B (en) * 2015-03-10 2020-02-18 电信科学技术研究院 Access method and device
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WO2022027445A1 (en) * 2020-08-06 2022-02-10 Lenovo (Beijing) Limited Method and apparatus for determining timing advance value
CN112822723A (en) * 2021-01-15 2021-05-18 重庆邮电大学 Mobile node fast switching method for 6TiSCH network
CN112822723B (en) * 2021-01-15 2022-04-05 重庆邮电大学 Mobile node fast switching method for 6TiSCH network
CN113179509A (en) * 2021-04-13 2021-07-27 珠海泰芯半导体有限公司 Self-networking method and device based on WiFi, storage medium and wireless node
CN113179509B (en) * 2021-04-13 2023-08-29 珠海泰芯半导体有限公司 Ad hoc network method and device based on WiFi, storage medium and wireless node

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