CN109275177A - A kind of method, apparatus and system of IAB base station access network network - Google Patents
A kind of method, apparatus and system of IAB base station access network network Download PDFInfo
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- CN109275177A CN109275177A CN201811081256.4A CN201811081256A CN109275177A CN 109275177 A CN109275177 A CN 109275177A CN 201811081256 A CN201811081256 A CN 201811081256A CN 109275177 A CN109275177 A CN 109275177A
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- base station
- iab
- network
- gnb
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/16—Discovering, processing access restriction or access information
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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
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/20—Selecting an access point
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- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Computer Security & Cryptography (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The embodiment of the invention provides the method, apparatus and system of a kind of IAB base station access network network, method therein includes: after the starting of the base station IAB, cell selection access network will be carried out as UE, if the network of the base station gNB offer has been accessed in the base station IAB as UE, then the base station gNB obtains the IAB base station information of adjacent cell, and the base station IAB as UE is assisted to be linked into the network provided by the base station adjacent cell IAB by the adjacent cell IAB base station information of acquisition, to can normally realize the function of its base station IAB after starting the base station IAB.The present invention solves in the prior art, there is technical issues that cannot achieve it after the network that the access of the base station IAB is provided by the base station gNB.
Description
Technical field
The present invention relates to 5G NR (New Radio) wireless communication technology field more particularly to a kind of IAB base station access networks
The method, apparatus and system of network.
Background technique
Compared with LTE (Long Term Evolution), 5G NR technology is able to use bigger bandwidth, such as can make
With millimeter wave frequency band, and extensive antenna and multiple-beam system can be applied, therefore 5G is capable of providing higher system velocity,
Develop for 5G NR and using the base station IAB (Integrated Access and Backhaul access and passback integrated base station)
Provide condition.The so-called base station IAB is exactly that the base station is integrated with wireless access links and wireless backhaul link, therein wireless
Access link communication link between UE (User Equipment user equipment) and the base station IAB, wireless backhaul link are IAB base
Communication link between standing, for carrying out data back, therefore the base station IAB does not need wire transmission network and carries out data back.
Based on this, the base station IAB is easier to be deployed in intensive scene, alleviates the burden of deployment cable transmission network network.
In the prior art, since there are the base stations 5G gNB and the base station IAB, wherein do not support to access and return one in the base station gNB
Body, and backhaul link can only use cable network, so if the net after the starting of the base station IAB as the base station UE access gNB
Network, then the base station IAB will can not achieve its function.
It follows that in the prior art, existing after the network that the access of the base station IAB is provided by the base station gNB cannot achieve its function
The technical issues of energy.
Summary of the invention
The embodiment of the invention provides the method, apparatus and system of a kind of IAB base station access network network, to solve or extremely
Small part solves in the prior art, there is the technology that cannot achieve its function after the network that the access of the base station IAB is provided by the base station gNB
Problem.
In order to solve the above-mentioned technical problems, the present invention provides a kind of methods of IAB base station access network network, comprising:
Step S1: after the starting of the base station IAB of network to be accessed, cell selection access network will be carried out as UE；
Step S2: it if the network that the base station IAB as UE is accessed is provided by the base station gNB, is obtained by the base station gNB
The IAB base station information of adjacent cell is taken, and the IAB base station information by obtaining assists the base station IAB as UE to be linked by adjacent small
The network that the area base station IAB provides, so as to realize the function of its base station IAB after the base station the IAB starting to be accessed.
In one implementation, step S1 is specifically included:
The base station IAB to be accessed sends instruction information to the access network, wherein the instruction information is to refer to
Show that the UE of access will realize IAB base station functions.
In one implementation, step S2 is specifically included:
Step S2.1: it when the access network is provided by the base station gNB, is then sent by the base station gNB to core net
First request, wherein first request is obtaining IAB donor base station information, so that the core net is based on described the
One requests to return to IAB donor base station information to the base station gNB；
Step S2.2: the base station gNB carries out the IAB donor base station information with the information of adjacent cells pre-saved
Comparison determines adjacent cell with the presence or absence of the base station IAB donor；
Step S2.3: it if there are the base stations IAB donor for the adjacent cell of the base station gNB, is obtained by the base station gNB
The topology information of the base station IAB donor is taken, if the base station IAB donor is not present in the adjacent cell of the base station gNB, passes through institute
The base station IAB to be accessed that the instruction of the base station gNB is stated as UE access carries out attachment removal operation；
Step S2.4: the base station gNB is based on the topology information, determines the base station IAB present in adjacent cell；
Step S2.5: the base station gNB configures the base station IAB as UE access, to the base station IAB present in adjacent cell into
Row measurement, obtains measurement result；
Step S2.6: the base station gNB is based on the measurement result and determines target adjacent section, and configures to be accessed
The base station IAB switches to the target adjacent section, or configures the base station gNB that the base station IAB attachment removal to be accessed is currently accessed, weight
It is newly attached to the target adjacent section, so that the base station IAB to be accessed is as target adjacent section described in UE access, and is realized
IAB base station functions.
In one implementation, in step S2.1, the IAB donor base that includes in the IAB donor base station information
It stands and the base station gNB belongs to the same paging domain and tracing area.
In one implementation, the IAB donor base station information includes: the frequency of the ID of the base station IAB donor, support
Rate and public land mobile network.
In one implementation, the adjacent cell includes multiple, and step S2.2 is specifically included:
The information of adjacent cells pre-saved is matched with the IAB donor base station information of acquisition, if successful match,
Then determine that there are the base stations corresponding IAB donor in adjacent cell.
In one implementation, step S2.3 is specifically included:
Judge with the presence or absence of Xn interface between the base station gNB and the base station the IAB donor, if it is present passing through
The Xn interface is directly to the topology information of the base station IAB donor base station requests IAB donor；
If it does not exist, then passing through topology information of the N1 interface to the base station core network requests IAB donor.
In one implementation, by the Xn interface directly to the IAB donor base station requests IAB donor base
The topology information stood, comprising:
The base station gNB sends the second request to the base station IAB donor by Xn interface, wherein second request is used
Topology information in the request base station IAB donor；
After the base station the IAB donor receives second request, the topology information of the base station IAB donor is connect by Xn
Mouth is sent to the base station gNB.
In one implementation, by N1 interface to the topology information of the base station core network requests IAB donor, comprising:
The base station gNB sends third request to core net by N1 interface, wherein the third request is for requesting
The topology information of the base station IAB donor, the third request carry the id information of the base station IAB donor；
After the base station the IAB donor receives third request, according to third request in the base station IAB donor that carries
Id information, determine the base station target IAB donor, and described in sending to the base station target IAB donor by N1 interface
Third request；
The target IAB donor, which is based on the third, to be requested to send its topology information to the core net；
After core net receives the topology information that the base station target IAB donor is sent, which is sent to gNB
Base station.
In one implementation, the topology information of the base station IAB donor is the child node and son of the base station IAB donor
The child node IAB base station information of node, the information specifically include the ID of the base station child node IAB, the frequency of support and public land
Ground mobile network.
In one implementation, the method also includes: when the base station IAB to be accessed access network by preset IAB
When base station provides, then the function that the base station IAB is realized as the base station IAB of UE access is assisted by the default base station IAB.
Based on same inventive concept, second aspect of the present invention provides a kind of device of IAB base station access network network, packet
It includes:
Cell selection module, for cell selection access will to be carried out as UE after the starting of the base station IAB of network to be accessed
Network；
Network access module passes through institute if the network for the base station the IAB access as UE is provided by the base station gNB
The IAB base station information that the base station gNB obtains adjacent cell is stated, and the adjacent cell IAB base station information by obtaining assists the IAB as UE
Base station is linked into the network provided by the base station adjacent cell IAB, so as to realize its IAB base after the base station the IAB starting to be accessed
The function of standing.
Based on same inventive concept, third aspect present invention provides a kind of system of IAB base station access network network, packet
It includes: the base station IAB and the base station gNB, wherein after the base station the IAB starting, cell selection access network will be carried out as UE, is being connect
When entering network by the offer of the base station gNB, the base station gNB obtains the IAB base station information of adjacent cell, and the adjacent cell by obtaining
IAB base station information assists the base station IAB as UE to be linked into the network provided by the base station adjacent cell IAB, so that described to be accessed
The starting of the base station IAB after realize the function of its base station IAB.
Said one or multiple technical solutions in the embodiment of the present application at least have following one or more technology effects
Fruit:
In technical solution provided by the invention, after the starting of the base station IAB, cell selection access network will be carried out as UE,
When the network of the base station gNB offer has been accessed in the base station IAB as UE, then the base station IAB for passing through the base station gNB acquisition adjacent cell is believed
Breath, assists the base station IAB as UE to be linked by adjacent cell IAB base followed by the adjacent cell IAB base station information of acquisition
It stands the network provided, to can normally realize the function of its base station IAB after starting the base station IAB.To solve existing skill
There is technical issues that cannot achieve it after the network that the access of the base station IAB is provided by the base station gNB in the method for art.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is this hair
Bright some embodiments for those of ordinary skill in the art without creative efforts, can be with root
Other attached drawings are obtained according to these attached drawings.
Fig. 1 is a kind of flow chart of the method for IAB base station access network network in the embodiment of the present invention；
Fig. 2 is to assist the base station IAB to be accessed to be linked into the flow chart of network by the base station gNB in the embodiment of the present invention；
Fig. 3 is IAB base station applies schematic diagram in the embodiment of the present invention；
Fig. 4 is the schematic diagram that the base station selected cell of IAB accesses network in the embodiment of the present invention；
Fig. 5 is a kind of structural schematic diagram of the device of IAB base station access network network in the embodiment of the present invention；
Fig. 6 is a kind of structural schematic diagram of the system of IAB base station access network network in the embodiment of the present invention.
Specific embodiment
The embodiment of the invention provides the method, apparatus and system of a kind of IAB base station access network network, to improve existing side
In method, there is technical issues that cannot achieve it after the network that the access of the base station IAB is provided by the base station gNB.
Technical solution in the embodiment of the present application, general thought are as follows:
After the starting of the base station IAB, cell selection access network will be carried out as UE, if the base station IAB as UE is accessed
The network that the base station gNB provides, then the base station gNB obtains the IAB base station information of adjacent cell, and the adjacent cell IAB base by obtaining
Information stand to assist the base station IAB as UE to be linked by the network of the base station adjacent cell IAB offer, so that the base station IAB be made to start
The function of its base station IAB can be normally realized afterwards.
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
Every other embodiment obtained without creative efforts, shall fall within the protection scope of the present invention.
Embodiment one
A kind of method for present embodiments providing IAB base station access network network, as shown in Figure 1, this method comprises:
Step S1: after the starting of the base station IAB of network to be accessed, cell selection access network will be carried out as UE；
Step S2: it if the network that the base station IAB as UE is accessed is provided by the base station gNB, is obtained by the base station gNB
The IAB base station information of adjacent cell is taken, and the adjacent cell IAB base station information by obtaining assists the base station IAB as UE to be linked into
The network provided by the base station adjacent cell IAB, so as to realize the function of its base station IAB after the base station the IAB starting to be accessed.
Specifically, UE is User Equipment, i.e. user equipment, and IAB base station access network network is used as UE access net
Network.Fig. 3 and Fig. 4 are referred to, wherein Fig. 3 is IAB base station applies schematic diagram.
The base station IAB provides the wireless backhaul service of wireless access and access service for other users equipment.IAB donor base
(the ownership base station IAB) is stood to the base station IAB offer wireless backhaul function, and the interface of other users equipment and core net is provided.From
In Fig. 1 as can be seen that base station IAB donor and core net are wired connection, do not have wired company between the base station IAB and core net
It connects, the base station IAB is connected to the base station IAB donor by wireless backhaul links, so that other users equipment and core net be made to carry out
Connection.
In addition, the base station IAB is properly termed as father's section if a base station IAB controls and dispatch another base station IAB
Point, the i.e. base station IAB are the father node of another base station IAB, as shown in Figure 1, the base station IAB 2 is properly termed as father node, it is
The father node of the base station IAB 3.If a base station IAB, under the control of another base station IAB, which can claim
For child node, i.e. the base station the IAB child node that is another base station IAB.As shown in Figure 1, the base station IAB 1, the base station IAB 2, IAB
Base station 3 and the base station IAB 4 can be referred to as child node, and wherein the base station IAB 1 and the base station IAB 2 are the son sections of the base station IAB donor
Point, the base station IAB 3 are the child nodes of the base station IAB 2, and the base station IAB 4 is the child node of the base station IAB 3.
Present invention applicant passes through largely practice discovery:
Since there are the base stations 5G gNB and the base station IAB, wherein the base station gNB is not supported to access and return integration, and returns
Cable network can only be used by passing link, so if network as the base station UE access gNB after the starting of the base station IAB, then the base station IAB
Its function will be can not achieve.When disposing 5G network, operator would generally according to actual needs and specific environment, a certain
The base station gNB and the base station IAB are disposed simultaneously in region.So, when the base station IAB starts, selection serving cell is subjected to network insertion,
And region locating when the starting of the base station IAB may be deployed with the base station IAB, it is also possible to be deployed with the base station gNB.And the base station IAB can only
The base station IAB is selected to carry out network insertion, to realize the function of its base station IAB.But when the base station IAB is actuated for cell choosing
When selecting access network, the service base station IAB is selected to carry out cell access since enough information can not be obtained from network, thus nothing
Method realizes IAB base station functions.For example, the base station gNB may be directly accessed by carrying out cell selection after the starting of the base station IAB.Therefore, it needs
Solve the problems, such as the base station IAB starting after how the base station access service IAB so that the base station IAB can be realized its function.
As shown in figure 4, accessing schematic diagram for the base station selected serving cell of IAB, when the base station IAB 1 starts, the base station IAB 1 will
The access base station IAB donor is selected according to the signal strength of cell as common UE；When the base station IAB 2 starts, the base station IAB 2
The access base station gNB will be selected according to the signal strength of cell as common UE.Therefore, when the base station IAB 2 is according to cell signal strength
After accessing the base station gNB, need the assistance of the base station gNB that it can just be made to be linked into the base station IAB (such as base station IAB 1), thus could just
Often realize the function of the base station IAB 2.
In the present embodiment, the IAB base station information of adjacent cell can be stored in advance by the base station gNB, can also be by gNB base
It stands and obtains in real time as needed, be not specifically limited herein.By the assistance of the base station gNB, the base station IAB to be accessed can be made fast
Quick access enters in network, and realizes its function.
In one implementation, step S1 is specifically included:
The base station IAB of the network to be accessed sends instruction information to the access network, wherein the instruction information is used
To indicate that the UE of access will realize IAB base station functions.
Specifically, the base station IAB to be accessed send indicate information by way of, can notify the access network its be
The base station IAB will realize IAB base station functions.In one implementation, Fig. 2 is referred to, step S2 is specifically included:
Step S2.1: it when the access network is provided by the base station gNB, is then sent by the base station gNB to core net
First request, wherein first request is obtaining IAB donor base station information, so that the core net is based on described the
One requests to return to IAB donor base station information to the base station gNB；
Specifically, IAB donor base station information may include: the base station IAB donor ID (identification,
Mark), support frequency and PLMN (Public Land Mobile Network public land mobile network).
In one implementation, the base station IAB donor for including in the IAB donor base station information and the gNB
Base station belongs to the same paging domain and tracing area.
Specifically, the base station IAB donor and the base station gNB for including in the IAB donor base station information in order to make request
Belong to the same paging domain and tracing area, the area information of the base station gNB can be carried in the first request, to make core
Net is based on area information and returns to corresponding IAB donor base station information.
Step S2.2: the base station gNB by the IAB donor base station information and the information of adjacent cell that pre-saves into
Row comparison determines adjacent cell with the presence or absence of the base station IAB donor；
Specifically, in the present embodiment, information of adjacent cells is the information that the base station gNB pre-saves, and is pre-saved
It may include IAB donor base station information in information of adjacent cells, it is also possible to do not include IAB donor base station information, by comparing,
It can determine satisfactory adjacent cell.
In one implementation, adjacent cell includes multiple, and step S2.2 is specifically included:
The information of adjacent cells pre-saved is matched with the IAB donor base station information of acquisition, if successful match,
Then determine that there are the base stations corresponding IAB donor in adjacent cell.
Specifically, such as IAB donor base station information includes the ID of the base station IAB donor, the frequency of support and public
Land mobile can then be matched according to the priority of every terms of information, such as match the base station IAB donor first
ID further matches the frequency and public land mobile network held if ID successful match, and then determines which adjacent cell is deposited
In the base station corresponding IAB donor.
Next it executes step S2.3: if there are the base stations IAB donor for the adjacent cell of the base station gNB, passing through the base station gNB
The topology information of the base station IAB donor is obtained, if the base station IAB donor is not present in the adjacent cell of the base station gNB, passes through gNB
Base station indicates that the base station IAB to be processed as UE access carries out attachment removal operation.
Specifically, the topology information of the base station IAB donor is the child node of the base station IAB donor and the son of child node
Node IAB base station information, the information specifically include the frequency and public land mobile network of the ID of the base station child node IAB, support.
By obtaining the topology information of the base station IAB donor, then it can choose out the target IAB base for the base station IAB for assisting this to be accessed
It stands.There is no the base stations IAB donor for adjacent cell when the base station gNB, then show that the base station IAB to be accessed can not be by IAB base
Stand and realize its function, then the base station the IAB progress attachment removal operation to be accessed by the instruction of the base station gNB as UE access, i.e., into
Row nullifies operation, does not access network.
In one implementation, step S2.3 is specifically included:
Judge with the presence or absence of Xn interface between the base station gNB and the base station IAB donor, if it is present straight by Xn interface
Connect the topology information to the base station IAB donor base station requests IAB donor；
If it does not exist, then passing through topology information of the N1 interface to the base station core network requests IAB donor.
In one implementation, by Xn interface directly to the topology of the base station IAB donor base station requests IAB donor
Information, comprising:
The base station gNB sends the second request to the base station IAB donor by Xn interface, wherein the second request is for requesting IAB
The topology information of the base station donor；
After the base station IAB donor receives the second request, the topology information of the base station IAB donor is sent to by Xn interface
The base station gNB.
Specifically, communication interface of the Xn interface between the base station gNB and the base station IAB donor, if there is Xn interface,
The request of topology information then can be directly carried out by the interface.
In one implementation, by N1 interface to the topology information of the base station core network requests IAB donor, comprising:
The base station gNB sends third request to core net by N1 interface, wherein third is requested for requesting IAB donor
The topology information of base station, third request carry the id information of the base station IAB donor；
After the base station IAB donor receives third request, according to third request in the ID of the base station IAB donor that carries believe
Breath determines the base station target IAB donor, and sends third request to the target base station IAB donor by N1 interface；
Target IAB donor, which is based on third, to be requested to send its topology information to core net；
After core net receives the topology information of the target base station IAB donor transmission, which is sent to gNB base
It stands.
Specifically, when the interface there are Xn not no between the base station gNB and the base station IAB donor, then the base station gNB can not be straight
It connects and is communicated with the base station IAB donor, need to pass through core net.Communication of the N1 interface between the base station gNB and core net connects
Mouthful.Core net can determine target IAB donor by the id information of the base station IAB donor of the carrying in third request
Then base station forwards third request.
Then it executes the base station step S2.4:gNB and is based on topology information, determine the base station IAB present in adjacent cell.
Specifically, due to containing the child node of the base station IAB donor and the child node of child node in topology information
IAB base station information may thereby determine that out satisfactory adjacent cell and the corresponding base station IAB of adjacent cell, satisfactory
Adjacent cell and the base station IAB can have multiple.
Next IAB base station of the base station the step S2.5:gNB configuration as UE access is executed, there are IAB bases in adjacent cell
Station measures, and obtains measurement result.
Specifically, to there are the base stations IAB to measure in adjacent cell, the reference signal that can measure the base station IAB is received
Power (RSRP) reports to the base station gNB as measurement result, and by measurement result.
The base station step S2.6:gNB is executed again, target adjacent section is determined based on measurement result, and configure IAB to be accessed
Base station switches to target adjacent section, or configures the base station gNB that the base station IAB attachment removal to be accessed is currently accessed, and adheres to again
To the target adjacent section, so that the base station IAB to be accessed is as UE access target adjacent section, and IAB base station functions are realized.
Specifically, when measurement result is Reference Signal Received Power, the base station gNB can receive function according to reference signal
Rate determines target adjacent section, such as the cell where the optimal base station IAB of Reference Signal Received Power is small as target neighbour
Area.
In one embodiment, the method also includes: when the access network of the base station IAB of network to be accessed is by presetting
When the base station IAB provides, then the function that the base station IAB is realized as the base station IAB of UE access is assisted by the default base station IAB.
Specifically, when the access network of the base station IAB of network to be accessed is provided by the default base station IAB, the base station IAB to be accessed is same
Sample can send instruction information to the network and then know that it will realize the function of the base station IAB after access network receives above-mentioned instruction message
The function that the base station IAB is realized as the base station IAB of UE access then can be assisted by the default base station IAB.
After the network provided after the starting of the base station IAB as UE access base station, the above scheme that example is applied through the invention,
The network provided by the base station adjacent cell IAB is quickly accessed after the base station IAB can be allowed to start, so as to normally realize the base station IAB
Function.
Based on the same inventive concept, present invention also provides the sides with one of embodiment one IAB base station access network network
The corresponding device of method, detailed in Example two.
Embodiment two
The present embodiment provides a kind of devices of IAB base station access network network, refer to Fig. 5, which includes:
Cell selection module 501, for cell selection will to be carried out as UE after the starting of the base station IAB of network to be accessed
Access network；
Network access module 502 passes through if the network for the base station the IAB access as UE is provided by the base station gNB
The base station gNB obtains the IAB base station information of adjacent cell, and the adjacent cell IAB base station information by obtaining is assisted as UE's
The base station IAB is linked into the network provided by the base station adjacent cell IAB, so as to realize its IAB after the base station the IAB starting to be accessed
The function of base station.
In one embodiment, cell selection module 501 is specifically used for:
The base station IAB to be accessed sends instruction information to the access network, wherein the instruction information is to refer to
Show that the UE of access will realize IAB base station functions.
In one embodiment, network access module 502 is specifically used for:
When the access network is provided by the base station gNB, then the first request is sent to core net by the base station gNB,
Wherein, first request is requested so that the core net is based on described first to institute to obtain IAB donor base station information
It states the base station gNB and returns to IAB donor base station information；
The base station gNB compares the IAB donor base station information with the information of adjacent cells pre-saved, determines
Adjacent cell whether there is the base station IAB donor；
If there are the base stations IAB donor for the adjacent cell of the base station gNB, IAB is obtained by the base station gNB
The topology information of the base station donor passes through the gNB if the base station IAB donor is not present in the adjacent cell of the base station gNB
Base station indicates that the base station IAB to be accessed as UE access carries out attachment removal operation；
The base station gNB is based on the topology information, determines the base station IAB present in adjacent cell；
The base station gNB configures the base station IAB as UE access, measures, obtains to the base station IAB present in adjacent cell
Obtain measurement result；
The base station gNB is based on the measurement result and determines target adjacent section, and configures the base station IAB switching to be accessed
The extremely target adjacent section, or the base station gNB that the base station IAB attachment removal to be accessed is currently accessed is configured, it is re-attached to institute
Target adjacent section is stated, so that the base station IAB to be accessed is as target adjacent section described in UE access, and realizes the base station IAB function
Energy.
In one embodiment, the base station IAB donor for including in the IAB donor base station information and the gNB
Base station belongs to the same paging domain and tracing area.
In one embodiment, the IAB donor base station information includes: the frequency of the ID of the base station IAB donor, support
Rate and public land mobile network.
In one embodiment, the adjacent cell includes multiple, and network access module 502 is specifically used for:
The information of adjacent cells pre-saved is matched with the IAB donor base station information of acquisition, if successful match,
Then determine that there are the base stations corresponding IAB donor in adjacent cell.
In one embodiment, network access module 502 is specifically used for:
Judge with the presence or absence of Xn interface between the base station gNB and the base station the IAB donor, if it is present passing through
The Xn interface is directly to the topology information of the base station IAB donor base station requests IAB donor；
If it does not exist, then passing through topology information of the N1 interface to the base station core network requests IAB donor.
In one embodiment, by the Xn interface directly to the IAB donor base station requests IAB donor base
The topology information stood, comprising:
The base station gNB sends the second request to the base station IAB donor by Xn interface, wherein second request is used
Topology information in the request base station IAB donor；
After the base station the IAB donor receives second request, the topology information of the base station IAB donor is connect by Xn
Mouth is sent to the base station gNB.
In one embodiment, by N1 interface to the topology information of the base station core network requests IAB donor, comprising:
The base station gNB sends third request to core net by N1 interface, wherein the third request is for requesting
The topology information of the base station IAB donor, the third request carry the id information of the base station IAB donor；
After the base station the IAB donor receives third request, according to third request in the base station IAB donor that carries
Id information, determine the base station target IAB donor, and described in sending to the base station target IAB donor by N1 interface
Third request；
The target IAB donor, which is based on the third, to be requested to send its topology information to the core net；
After core net receives the topology information that the base station target IAB donor is sent, which is sent to gNB
Base station.
In one embodiment, the topology information of the base station IAB donor is the child node and son of the base station IAB donor
The child node IAB base station information of node, the information specifically include the ID of the base station child node IAB, the frequency of support and public land
Ground mobile network.
In one embodiment, device provided in this embodiment further includes assist process module, for working as networking waiting
When the access network of the base station IAB of network is provided by the default base station IAB, then assist to be used as UE access by the default base station IAB
The base station IAB realize the base station IAB function.
By the device that the embodiment of the present invention two is introduced, to implement IAB base station access network network in the embodiment of the present invention one
Method used by device, so the affiliated personnel in this field can understand based on the method that the embodiment of the present invention one is introduced
The specific structure of the device and deformation, so details are not described herein.Device used by the method for all embodiment of the present invention one
Belong to the range of the invention to be protected.
Based on the same inventive concept, present invention also provides the sides with one of embodiment one IAB base station access network network
The corresponding system of method, detailed in Example three.
Embodiment three
The present embodiment provides a kind of systems of IAB base station access network network, refer to Fig. 6, comprising: the base station IAB and gNB base
It stands, wherein after the base station the IAB starting, cell selection access network will be carried out as UE, is mentioned in access network by the base station gNB
For when, the base station gNB obtains the IAB base station information of adjacent cell, and the adjacent cell IAB base station information by obtaining assists conduct
The base station IAB of UE is linked into the network provided by the base station adjacent cell IAB, so as to realize after the base station the IAB starting to be accessed
The function of its base station IAB.
By the system that the embodiment of the present invention three is introduced, to implement IAB base station access network network in the embodiment of the present invention one
Method used by system, so the affiliated personnel in this field can understand based on the method that the embodiment of the present invention one is introduced
The specific structure of the system and deformation, so details are not described herein.System used by the method for all embodiment of the present invention one
Belong to the range of the invention to be protected.
Although preferred embodiments of the present invention have been described, it is created once a person skilled in the art knows basic
Property concept, then additional changes and modifications may be made to these embodiments.So it includes excellent that the following claims are intended to be interpreted as
It selects embodiment and falls into all change and modification of the scope of the invention.
Obviously, those skilled in the art can carry out various modification and variations without departing from this hair to the embodiment of the present invention
The spirit and scope of bright embodiment.In this way, if these modifications and variations of the embodiment of the present invention belong to the claims in the present invention
And its within the scope of equivalent technologies, then the present invention is also intended to include these modifications and variations.
Claims (13)
1. a kind of method of IAB base station access network network characterized by comprising
Step S1: after the starting of the base station IAB of network to be accessed, cell selection access network will be carried out as UE；
Step S2: it if the network that the base station IAB as UE is accessed is provided by the base station gNB, is obtained by the base station gNB adjacent
The IAB base station information of cell, and the adjacent cell IAB base station information by obtaining assists the base station IAB as UE to be linked by neighbour
The network that the base station cell IAB provides, so as to realize the function of its base station IAB after the base station the IAB starting to be accessed.
2. the method as described in claim 1, which is characterized in that step S1 is specifically included:
The base station IAB to be accessed sends instruction information to the access network, wherein the instruction information connects to indicate
The UE entered will realize IAB base station functions.
3. the method as described in claim 1, which is characterized in that step S2 is specifically included:
Step S2.1: when the access network is provided by the base station gNB, then first is sent to core net by the base station gNB
Request, wherein first request is asked to obtain IAB donor base station information so that the core net is based on described first
It asks to the base station gNB and returns to IAB donor base station information；
Step S2.2: the base station gNB carries out the IAB donor base station information and the information of adjacent cells that pre-saves pair
Than determining adjacent cell with the presence or absence of the base station IAB donor；
Step S2.3: it if there are the base stations IAB donor for the adjacent cell of the base station gNB, is obtained by the base station gNB
The topology information of the base station IAB donor, if the base station IAB donor is not present in the adjacent cell of the base station gNB, by described
The base station gNB indicates that the base station IAB as UE network to be accessed carries out attachment removal operation；
Step S2.4: the base station gNB is based on the topology information, determines the base station IAB present in adjacent cell；
Step S2.5: the base station gNB configures the base station IAB as UE access, surveys base station to IAB present in adjacent cell
Amount obtains measurement result；
Step S2.6: the base station gNB is based on the measurement result and determines target adjacent section, and configures IAB base to be accessed
Station switches to the target adjacent section, or configures the base station gNB that the base station IAB attachment removal to be accessed is currently accessed, again attached
Arrive the target adjacent section so that the base station IAB to be accessed is as target adjacent section described in UE access, and realize IAB
Base station functions.
4. method as claimed in claim 3, which is characterized in that in step S2.1, wrapped in the IAB donor base station information
The base station IAB donor and the base station gNB contained belongs to the same paging domain and tracing area.
5. the method as described in claim 1, which is characterized in that the IAB donor base station information includes: IAB donor base
The frequency and public land mobile network of the ID, support that stand.
6. the method as described in claim 1, which is characterized in that the adjacent cell include it is multiple, step S2.2 is specifically included:
The information of adjacent cells pre-saved is matched with the IAB donor base station information of acquisition, if successful match, really
Determine in adjacent cell that there are the base stations corresponding IAB donor.
7. method according to claim 2, which is characterized in that step S2.3 is specifically included:
Judge with the presence or absence of Xn interface between the base station gNB and the base station the IAB donor, if it is present by described
Xn interface is directly to the topology information of the base station IAB donor base station requests IAB donor；
If it does not exist, then passing through topology information of the N1 interface to the base station core network requests IAB donor.
8. the method for claim 7, which is characterized in that by the Xn interface directly to the base station the IAB donor
Request the topology information of the base station IAB donor, comprising:
The base station gNB sends the second request to the base station IAB donor by Xn interface, wherein second request is for asking
Seek the topology information of the base station IAB donor；
After the base station the IAB donor receives second request, the topology information of the base station IAB donor is sent out by Xn interface
It send to the base station gNB.
9. the method for claim 7, which is characterized in that pass through N1 interface opening up to the base station core network requests IABdonor
Flutter information, comprising:
The base station gNB sends third request to core net by N1 interface, wherein the third request is for requesting IAB
The topology information of the base station donor, the third request carry the id information of the base station IAB donor；
After the core net receives third request, according to third request in the id information of the base station IAB donor that carries, really
The base station target IAB donor is made, and the third request is sent to the base station target IAB donor by N1 interface；
The target IAB donor, which is based on the third, to be requested to send its topology information to the core net；
After core net receives the topology information that the base station target IAB donor is sent, which is sent to gNB base
It stands.
10. the method for claim 7, which is characterized in that the topology information of the base station IAB donor is IAB donor base
The child node IAB base station information for the child node and child node stood, the information specifically include the ID of the base station child node IAB, support
Frequency and public land mobile network.
11. the method as described in claim 1, which is characterized in that the method also includes: when connecing for the base station IAB to be accessed
When entering network by the default base station IAB offer, then the base station IAB as UE access is assisted to realize IAB by the default base station IAB
The function of base station.
12. a kind of device of IAB base station access network network characterized by comprising
Cell selection module, for cell selection access net after the starting of the base station IAB of network to be accessed, will to be carried out as UE
Network；
Network access module passes through the gNB if the network for the base station the IAB access as UE is provided by the base station gNB
Base station obtains the IAB base station information of adjacent cell, and the adjacent cell IAB base station information by obtaining assists the base station IAB as UE
It is linked into the network provided by the base station adjacent cell IAB, so as to realize its base station IAB after the base station the IAB starting to be accessed
Function.
13. a kind of system of IAB base station access network network characterized by comprising the base station IAB and the base station gNB, wherein described
After the starting of the base station IAB, UE will be used as to carry out cell selection access network, when accessing network by the offer of the base station gNB, the gNB
Base station obtains the IAB base station information of adjacent cell, and the adjacent cell IAB base station information by obtaining assists the base station IAB as UE
It is linked into the network provided by the base station adjacent cell IAB, so as to realize its base station IAB after the base station the IAB starting to be accessed
Function.
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