CN116033512A - IAB host node switching method, device, equipment and medium in self-returning IAB network - Google Patents
IAB host node switching method, device, equipment and medium in self-returning IAB network Download PDFInfo
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Abstract
The application discloses an IAB host node switching method, device, equipment and medium in a self-returning IAB network, and belongs to the technical field of communication. The method comprises the following steps: acquiring position information and/or motion data information of UE connected to a current IAB host node topological structure; determining whether the UE meets the handover condition of an IAB host node; determining a target IAB host node; sending an acquisition request of a target IAB host node topological structure to the target IAB host node; receiving the target IAB hosting node topology; determining a target IAB node of the UE in a target IAB hosting node topology; sending out an acquisition request of configuration parameters of the target IAB node; and sending the received configuration parameters of the target IAB node to the UE. According to the technical scheme, the switching efficiency of the IAB node and the capability of switching different IAB host nodes can be improved.
Description
Technical Field
The application belongs to the technical field of communication, and in particular relates to an IAB host node switching method, device, equipment and medium in a self-returning IAB network.
Background
With the continuous development of 5G communication, it is becoming more and more common to transmit signals using a 5G network, and it is also becoming more and more important to expand the coverage of base station signals using a self-backhauled IAB network. Because the self-returning IAB network includes a plurality of IAB nodes, in order to prevent the UE from communication interruption during the moving process, it is necessary to switch the IAB nodes accessed by the UE.
The current mode of switching the IAB node mainly comprises that the user terminal UE reports a proper measurement report to a source IAB host node which is connected with the UE, the source IAB node issues a switching command to the UE according to the measurement report, the UE triggers the node to switch after receiving the switching command, searches and detects a target IAB node signal in the current frequency range, and then selects a proper target IAB node to be configured and accessed.
Because the UE is required to be configured by using the configuration parameters of the target IAB node before being accessed in the switching of the IAB node, the configuration parameters are not acquired before the switching of the IAB node in the prior art, and therefore the speed of the switching of the IAB node is reduced by using the prior art. Meanwhile, in the prior art, different IAB nodes under the same IAB host node are switched, but the node switching in the IAB network also comprises switching among different IAB host nodes, so that the IAB host node cannot be directly switched by the prior art, and the capability of switching the IAB host node is limited.
Disclosure of Invention
An objective of the embodiments of the present invention is to provide a method, an apparatus, a device, and a medium for switching an IAB host node in a self-backhauled IAB network, which can solve the problems in the prior art that the IAB node is relatively slow in switching speed and relatively poor in capability of switching an IAB host node, and by acquiring location information and/or motion data information of a UE connected to a current IAB host node topology, determining whether the UE satisfies a switching condition of an IAB host node and determining a target IAB host node, acquiring and transmitting configuration parameters of the target IAB node to the UE, so that the UE can switch to the target IAB host node, thereby improving switching efficiency of the IAB node and capability of switching different IAB host nodes.
In a first aspect, an embodiment of the present application provides a method for switching an IAB host node in a self-backhaul IAB network, where the method includes:
acquiring position information and/or motion data information of UE connected to a current IAB host node topological structure;
determining whether the UE meets the switching condition of an IAB host node according to the position information and/or the motion data information of the UE;
if yes, determining a target IAB host node according to the position information and/or the motion data information of the UE;
Sending an acquisition request of a target IAB host node topological structure to the target IAB host node;
receiving the target IAB hosting node topology;
determining a target IAB node of the UE in the target IAB host node topological structure according to the target IAB host node topological structure;
sending a request for acquiring configuration parameters of the target IAB node to the target IAB host node;
and sending the received configuration parameters of the target IAB node to the UE, so that the UE can be switched to the target IAB node in the target IAB host node topological structure according to the configuration parameters.
Further, determining the target IAB node of the UE in the target IAB host node topology according to the target IAB host node topology includes:
determining candidate IAB nodes of the UE in the target IAB host node topological structure according to the target IAB host node topological structure;
if the number of the candidate IAB nodes is one, determining the candidate IAB node as a target IAB node;
and if the number of the candidate IAB nodes is at least two, determining one candidate IAB node as the target IAB node according to the path attribute and/or the configuration attribute of the at least two candidate IAB nodes in the target IAB host node topological structure.
Further, determining whether the UE meets a handover condition of an IAB host node according to the location information and/or the motion data information of the UE includes:
acquiring a signal coverage area of at least one adjacent IAB host node around the current IAB host node;
acquiring a signal coverage range of a current IAB host node and a signal coverage range of at least one adjacent IAB host node around the current IAB host node, and determining a coverage boundary of the current IAB host node;
and determining whether the UE meets the switching condition of the IAB host node according to the coverage boundary of the current IAB host node and the position information and/or the motion data information of the UE.
Further, before issuing the target IAB hosting node a request for acquisition of a target IAB hosting node topology to the target IAB hosting node, the method further comprises:
reading a target IAB host node topological structure prestored in a current IAB host node;
identifying whether the update information of the target IAB host node topological structure exists in an update event list;
if so, executing the operation of sending an acquisition request of the target IAB host node topological structure to the target IAB host node;
if not, reading the pre-stored target IAB host node topological structure.
Further, the target IAB host node topology includes:
path information from the target IAB host node to each IAB node, and location information and signal coverage information of each IAB node.
Further, the path attribute includes the number information of intermediate IAB nodes from each candidate IAB node to the target IAB host node;
the configuration attribute includes a BWP configuration of each candidate IAB node.
In a second aspect, an embodiment of the present application provides an IAB hosting node switching device in a self-backhaul IAB network, where the device includes:
the information acquisition module is used for acquiring the position information and/or the motion data information of the UE connected to the current IAB host node topological structure;
the switching judging module is used for determining whether the UE meets the switching condition of the IAB host node according to the position information and/or the motion data information of the UE;
the target IAB host node determining module is used for determining a target IAB host node according to the position information and/or the motion data information of the UE;
the structure acquisition request module is used for sending an acquisition request of the target IAB host node topological structure to the target IAB host node;
the structure receiving module is used for receiving the target IAB host node topological structure;
A target IAB node determining module, configured to determine a target IAB node of the UE in a target IAB host node topology according to the target IAB host node topology;
a configuration parameter acquisition request module, configured to send an acquisition request of the configuration parameter of the target IAB node to the target IAB host node;
and the configuration parameter sending module is used for sending the received configuration parameters of the target IAB node to the UE, so that the UE can be switched to the target IAB node in the target IAB host node topological structure according to the configuration parameters.
Further, determining candidate IAB nodes of the UE in the target IAB host node topological structure according to the target IAB host node topological structure;
if the number of the candidate IAB nodes is one, determining the candidate IAB node as a target IAB node;
and if the number of the candidate IAB nodes is at least two, determining one candidate IAB node as the target IAB node according to the path attribute and/or the configuration attribute of the at least two candidate IAB nodes in the target IAB host node topological structure.
In a third aspect, embodiments of the present application provide an electronic device comprising a processor, a memory and a program or instruction stored on the memory and executable on the processor, the program or instruction implementing the steps of the method according to the first aspect when executed by the processor.
In a fourth aspect, embodiments of the present application provide a readable storage medium having stored thereon a program or instructions which when executed by a processor implement the steps of the method according to the first aspect.
In a fifth aspect, embodiments of the present application provide a chip, where the chip includes a processor and a communication interface, where the communication interface is coupled to the processor, and where the processor is configured to execute a program or instructions to implement a method according to the first aspect.
In the embodiment of the application, the position information and/or the motion data information of the UE connected to the current IAB host node topological structure are acquired; determining whether the UE meets the switching condition of an IAB host node according to the position information and/or the motion data information of the UE; if yes, determining a target IAB host node according to the position information and/or the motion data information of the UE; sending an acquisition request of a target IAB host node topological structure to the target IAB host node; receiving the target IAB hosting node topology; determining a target IAB node of the UE in the target IAB host node topological structure according to the target IAB host node topological structure; sending a request for acquiring configuration parameters of the target IAB node to the target IAB host node; and sending the received configuration parameters of the target IAB node to the UE, so that the UE can be switched to the target IAB node in the target IAB host node topological structure according to the configuration parameters. By the method for switching the IAB host node in the self-feedback IAB network, the problems that in the prior art, the IAB node switching speed is low and the capability of switching the IAB host node is poor can be solved, whether the UE meets the switching conditions of the IAB host node or not and determines the target IAB host node is determined by acquiring the position information and/or the motion data information of the UE connected to the current IAB host node topology structure, the configuration parameters of the target IAB node are acquired and sent to the UE, so that the UE can switch the IAB node to the target IAB host node, and the switching efficiency of the IAB node and the capability of switching different IAB host nodes can be improved.
Drawings
Fig. 1 is a flowchart of an IAB hosting node switching method in a self-backhaul IAB network according to an embodiment of the present application;
fig. 2 is a flow chart of an IAB hosting node switching method in a self-backhaul IAB network according to a second embodiment of the present application;
fig. 3 is a schematic structural diagram of an IAB hosting node switching device in a self-backhaul IAB network according to a third embodiment of the present application;
fig. 4 is a schematic structural diagram of an electronic device according to an embodiment of the present application.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present application more apparent, the following detailed description of specific embodiments thereof is given with reference to the accompanying drawings. It is to be understood that the specific embodiments described herein are merely illustrative of the application and not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the matters related to the present application are shown in the accompanying drawings. Before discussing exemplary embodiments in more detail, it should be mentioned that some exemplary embodiments are described as processes or methods depicted as flowcharts. Although a flowchart depicts operations (or steps) as a sequential process, many of the operations can be performed in parallel, concurrently, or at the same time. Furthermore, the order of the operations may be rearranged. The process may be terminated when its operations are completed, but may have additional steps not included in the figures. The processes may correspond to methods, functions, procedures, subroutines, and the like.
Technical solutions in the embodiments of the present application will be clearly described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application are within the scope of the protection of the present application.
The terms first, second and the like in the description and in the claims, are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged, as appropriate, such that embodiments of the present application may be implemented in sequences other than those illustrated or described herein, and that the objects identified by "first," "second," etc. are generally of a type and not limited to the number of objects, e.g., the first object may be one or more. Furthermore, in the description and claims, "and/or" means at least one of the connected objects, and the character "/", generally means that the associated object is an "or" relationship.
The following describes in detail, by means of specific embodiments and application scenarios thereof, an IAB hosting node switching method, device, equipment and medium in a self-backhaul IAB network provided in the embodiments of the present application with reference to the accompanying drawings.
Example 1
Fig. 1 is a flowchart of an IAB hosting node switching method in a self-backhaul IAB network according to an embodiment of the present application. As shown in fig. 1, the method specifically comprises the following steps:
s101, acquiring position information and/or motion data information of UE (user equipment) connected to a current IAB (inter-access node) host node topological structure;
firstly, the usage scenario of the present application may be a scenario in which an IAB node needs to be switched in a self-backhaul IAB network, specifically, a scenario in which a cell needs to be switched to an IAB host node, or a scenario in which an IAB link needs to be switched to a mobile UE, which is not limited too much.
Based on the usage scenario, the execution body of the application may be the current IAB home node, i.e. the IAB home node that needs to perform cell handover. The IAB host node should have data reception and transmission and processing capabilities, not too much defined herein.
In this scheme, the UE may be a user terminal having functions of information receiving, transmitting, and data processing in the access IAB network. The UE may be a fixed terminal device such as: a multimedia device installed at a certain fixed position, etc.; but also mobile terminal devices such as: cell phones, tablet computers, etc., are not limited in this regard. The current IAB-hosting node topology may be a structure comprising a current IAB-hosting node, a UE, and a connection node between the current IAB and the UE, which may reflect a link structure of the IAB network. The current IAB host node may be a node connected to a link where the UE is located and capable of controlling and exchanging information with the UE, and specifically, the IAB host node may include an IAB host node wirelessly connected to a cloud network, and may further include a plurality of IAB nodes between the IAB host node and the UE. The IAB node has the functions of forwarding and connection, and can enlarge the signal coverage of the IAB host node. Thus, the current IAB node may be directly connected to the UE using a wireless network, and may also be connected to the UE via a plurality of IAB nodes using a wireless network. The location information of the UE may be a specific value of the three-dimensional location coordinate of the UE, or may be relative location information of the UE with respect to a node in the signal coverage of the current IAB host node, which is not limited herein. The motion data information of the UE may be data information such as a moving direction and a moving speed of the UE in a moving process, and a moving displacement of the current IAB node relative to a certain IAB node in the UE link, which is not limited herein.
In this scheme, the current IAB host node may send a positioning instruction to the UE connected to the topology structure of the current IAB host node through a wireless transmission manner, and after receiving the positioning instruction, the UE may acquire current location information and/or motion data information of itself by using a positioning technology such as GPS, and the current IAB host node receives the foregoing information returned by the UE through a wireless transmission manner.
S102, determining whether the UE meets the switching condition of an IAB host node according to the position information and/or the motion data information of the UE;
in this scheme, the handover condition of the IAB host node may be a condition that a current IAB host node can be handed over to enable the UE to access to links of other IAB host nodes, specifically, a condition that the current IAB host node cannot continue to provide services such as access and backhaul for the UE, or one or more conditions that the data transmission effect of other IAB host nodes on the UE is better than that of the current IAB host node. For example: the position of the UE reaches the boundary of the coverage of the current IAB host node, the signal strength of the IAB host node for receiving and sending signals to the UE is lower than a signal strength threshold value, the UE detects the IAB host node with better communication effect, and the like. The current IAB host node may determine whether the UE meets a handover condition of the IAB host node according to one or more of the received information content, signal strength, and a positional relationship between the information content and the UE itself of the location information and/or the motion data information returned by the UE.
Based on the above embodiment, optionally, determining whether the UE meets the handover condition of the IAB host node according to the location information and/or the motion data information of the UE includes:
acquiring a signal coverage area of at least one adjacent IAB host node around the current IAB host node;
acquiring a signal coverage range of a current IAB host node and a signal coverage range of at least one adjacent IAB host node around the current IAB host node, and determining a coverage boundary of the current IAB host node;
and determining whether the UE meets the switching condition of the IAB host node according to the coverage boundary of the current IAB host node and the position information and/or the motion data information of the UE.
In this scheme, one or more other IAB host nodes may be set around one IAB host node according to requirements such as a coverage area of a signal and a signal transmission strength, and data such as a signal coverage area, a topology structure, and configuration parameters of the other IAB host nodes are stored. The current IAB hosting node may obtain the signal coverage of at least one neighboring IAB hosting node around the current IAB hosting node by reading the data of the other IAB hosting nodes in the storage unit.
In this solution, the coverage boundary of the current IAB host node may be a superposition portion between the signal coverage of the current IAB host node and the signal coverage of at least one neighboring IAB host node, or may be an edge portion where the two signal coverage are just connected. The coverage boundary of the current IAB host node may be determined based on the signal coverage data of the current IAB host node and the signal coverage data of at least one neighboring IAB host node.
In this scheme, it may be determined whether the UE satisfies a handover condition of the IAB home node by combining a coverage boundary of the current IAB home node with one or more of location information and motion data information of the UE, for example: and if the position of the UE is at the coverage boundary of the current IAB host node and the UE moves in a direction away from the current IAB host node, determining that the UE meets the switching condition of the IAB host node. Specifically, the motion data information may be data information directly measured by a sensor or the like, or may be data information calculated according to a change of the acquired position information of the UE, which is not limited herein.
In the scheme, the coverage boundary of the current IAB host node is determined by acquiring the signal coverage of the current IAB host node and the signal coverage of at least one adjacent IAB host node, and whether the UE meets the switching condition of the IAB host node or not is determined according to the coverage boundary of the current IAB host node and the position information and/or the motion data information of the UE, so that the accuracy and the reliability of the switching judgment of the IAB host node can be improved.
S103, if yes, determining a target IAB host node according to the position information and/or the motion data information of the UE;
in this scheme, the target IAB host node may be an IAB node for signaling between the UE and the cloud network, where the IAB host node may include one IAB host node, and may further include one IAB host node and multiple IAB nodes, and the target IAB host node may be one or multiple IAB host nodes. Specifically, the target IAB host node may be an IAB host node where the location of the UE is within a coverage area or at an edge, or may be an IAB host node where motion data such as a motion direction of the UE is close to the coverage area or the edge, or an IAB host node where signal strength is greater than or equal to that of a current IAB host node to which the UE accesses, which is not limited herein. If the UE satisfies the handover condition of the IAB host node, the target IAB host node may be determined according to one or more of the location information and the motion data information of the UE.
S104, sending an acquisition request of a target IAB host node topological structure to the target IAB host node;
s105, receiving the target IAB host node topological structure;
in this scheme, the target IAB hosting node topology may include each IAB node in the target IAB hosting node, a node link structure, a combination manner of IAB nodes in each node link, and so on, where the target IAB hosting node topology may be stored in a storage unit of the target IAB hosting node. After determining the target IAB host node, a request for obtaining the target IAB host node topology may be sent to the target IAB host node by means of wireless transmission. The obtaining request may include obtaining configuration parameters, signal strength, coverage, and the like of each IAB node in the target IAB host node topology. And after sending an acquisition request of the target IAB host node topology structure to the target IAB host node, receiving the returned topology structure of the target IAB host node in a wireless transmission mode.
S106, determining a target IAB node of the UE in the target IAB host node topological structure according to the target IAB host node topological structure;
In this scheme, the target IAB node may be an IAB node directly connected to the UE, and configured to access the UE to a link of the target IAB host node. The target IAB node may be an IAB host node in the target IAB host node, and may also be a next-stage or multi-stage IAB node of the IAB host node. The target IAB nodes may be one or more of the same or different target IAB host nodes. And determining a plurality of link structures, node configuration parameters and the like connected under the same IAB host node according to the target IAB host node topological structure, so as to determine the target IAB node of the UE in the target IAB host node topological structure.
Based on the above embodiment, optionally, determining, according to the target IAB hosting node topology, a target IAB node of the UE in the target IAB hosting node topology includes:
determining candidate IAB nodes of the UE in the target IAB host node topological structure according to the target IAB host node topological structure;
if the number of the candidate IAB nodes is one, determining the candidate IAB node as a target IAB node;
And if the number of the candidate IAB nodes is at least two, determining one candidate IAB node as the target IAB node according to the path attribute and/or the configuration attribute of the at least two candidate IAB nodes in the target IAB host node topological structure.
In this scheme, the candidate IAB node may be an IAB node that can enable the UE to access and be used for information transmission, where the candidate IAB node may be an IAB host node directly wirelessly connected to a cloud network, and may also be a next-stage or multi-stage IAB node of the IAB host node. And determining candidate IAB nodes of the UE in the target IAB host node topology structure according to the target IAB host node topology structure. And the candidate IAB nodes may be one or more. If the number of the candidate IAB nodes is one, determining that the candidate IAB node is a target IAB node; and if the number of the candidate IAB nodes is at least two, determining one candidate IAB node as the target IAB node according to at least one attribute of path attributes and configuration attributes of the at least two candidate IAB nodes in the target IAB host node topological structure. The path data may be a link structure attribute between the candidate IAB node and the IAB host node, and the configuration attribute may be an IP address, an operating bandwidth, a signal strength, a transmission power, and the like of the candidate IAB node.
In this scheme, by determining candidate IAB nodes of the UE in the target IAB host node topology according to the target IAB host node topology, if the number of the candidate IAB nodes is one, determining that the candidate IAB nodes are target IAB nodes, and if the number of the candidate IAB nodes is at least two, determining that one candidate IAB node is a target IAB node according to path attributes and/or configuration attributes of at least two candidate IAB nodes in the target IAB host node topology, it is possible to improve reliability of selection of IAB nodes, and achieve the purpose of switching between different IAB host nodes.
Based on the above embodiment, optionally, the path attribute includes information of the number of intermediate IAB nodes from each candidate IAB node to the target IAB host node;
the configuration attribute includes a BWP configuration of each candidate IAB node.
In this solution, if the number of candidate IAB nodes determined by the current IAB host node is at least two, one candidate IAB node may be determined to be the target IAB node according to at least one of path attributes and configuration attributes of the at least two candidate IAB nodes in the target IAB host node topology. Specifically, the path attribute includes the number information of the candidate IAB nodes from the candidate IAB node to the IAB node among the IAB host nodes in the target IAB host node topology structure, and the IAB node with the smaller number in the number information may be used as the target IAB node. The configuration attribute includes a BWP configuration of each candidate IAB node, and the BWP (Bandwidth Part, a Part of Bandwidth) may be a Bandwidth including only a Part of the frequency band set according to the configuration power and the frequency band range of the UE in order to avoid waste of frequency band resources and UE configuration. Since each candidate IAB node may operate on a different BWP, the candidate IAB node with the wider BWP bandwidth may be selected as the target node in the case where the UEs are the same.
In the scheme, the number information of the intermediate IAB nodes from each candidate IAB node to the target IAB host node is used as the path attribute, and BWP configuration of each candidate IAB node is used as the configuration attribute, so that the simplicity and the reliability of target IAB node selection can be improved.
S107, sending a request for acquiring the configuration parameters of the target IAB node to the target IAB host node;
in this scheme, the current IAB host node may send a request for obtaining the configuration parameters of the target IAB node to the target IAB host node by using a wireless transmission method. The UE needs to send a connection request to the target IAB node when accessing the target IAB node, the target IAB node reports the request to the target IAB host node, the target IAB host node configures link parameters for the UE according to the parameters of the UE, and the UE establishes a context according to the configuration of the IAB host node and finally accesses the target IAB node.
S108, the received configuration parameters of the target IAB node are sent to the UE, and the UE is switched to the target IAB node in the target IAB host node topological structure according to the configuration parameters.
In this scheme, before the UE accesses the target IAB node, the current IAB host node may request to acquire and receive the configuration parameters of the target IAB node through a wireless transmission manner, and send the received configuration parameters of the target IAB node to the UE. After receiving the handover command sent by the current IAB host node, the UE may directly access the target IAB node in the target IAB host node topology according to the configuration parameter.
According to the technical scheme provided by the embodiment, the position information and/or the motion data information of the UE connected to the current IAB host node topological structure are acquired; determining whether the UE meets the switching condition of an IAB host node according to the position information and/or the motion data information of the UE; if yes, determining a target IAB host node according to the position information and/or the motion data information of the UE; sending an acquisition request of a target IAB host node topological structure to the target IAB host node; receiving the target IAB hosting node topology; determining a target IAB node of the UE in the target IAB host node topological structure according to the target IAB host node topological structure; sending a request for acquiring configuration parameters of the target IAB node to the target IAB host node; and sending the received configuration parameters of the target IAB node to the UE, so that the UE can be switched to the target IAB node in the target IAB host node topological structure according to the configuration parameters. By the method for switching the IAB host node in the self-feedback IAB network, the problems that in the prior art, the IAB node switching speed is low and the capability of switching the IAB host node is poor can be solved, whether the UE meets the switching conditions of the IAB host node or not and determines the target IAB host node is determined by acquiring the position information and/or the motion data information of the UE connected to the current IAB host node topology structure, the configuration parameters of the target IAB node are acquired and sent to the UE, so that the UE can switch the IAB node to the target IAB host node, and the switching efficiency of the IAB node and the capability of switching different IAB host nodes can be improved.
Example two
Fig. 2 is a schematic diagram of a construction flow of a pointer array according to a second embodiment of the present application. As shown in fig. 2, the method specifically comprises the following steps:
s201, acquiring position information and/or motion data information of UE connected to a current IAB host node topological structure;
s202, determining whether the UE meets the switching condition of an IAB host node according to the position information and/or the motion data information of the UE;
s203, if yes, determining a target IAB host node according to the position information and/or the motion data information of the UE;
s204, sending an acquisition request of a target IAB host node topological structure to the target IAB host node;
based on the above embodiment, optionally, before issuing the acquisition request of the target IAB host node topology to the target IAB host node, the method further includes:
reading a target IAB host node topological structure prestored in a current IAB host node;
identifying whether the update information of the target IAB host node topological structure exists in an update event list;
if so, executing the operation of sending an acquisition request of the target IAB host node topological structure to the target IAB host node;
if not, reading the pre-stored target IAB host node topological structure.
In this scheme, the IAB host nodes may mutually pre-store the topology of surrounding IAB host nodes in the storage unit, and establish an update event list. The update event list may be a list of nodes and link structures etc. for storing a certain IAB hosting node. Before sending an acquisition request of a target IAB host node topology structure to the target IAB host node, the current AIB host node reads the target IAB host node topology structure stored in the storage unit in advance through encoding, and simultaneously identifies whether update information of the target IAB host node topology structure exists in an update event list. Specifically, if the update event list contains the update information of the target IAB host node topology structure, the operation of sending a topology structure acquisition request to the target IAB host node is re-sent in a wireless transmission mode, so that a new target IAB host node topology structure is acquired; if not, reading the pre-stored target IAB host node topological structure.
In the scheme, before the target IAB host node sends the acquisition request of the target IAB host node topology structure to the target IAB host node, the target IAB host node topology structure prestored in the current IAB host node is read, whether the update information of the target IAB host node topology structure exists in the update event list is identified, and then the target IAB host node topology structure is acquired, so that the accuracy of acquiring the target IAB host node topology structure can be improved, and the accuracy of switching the IAB nodes is further improved.
Based on the above embodiment, optionally, the target IAB host node topology includes:
path information from the target IAB host node to each IAB node, and location information and signal coverage information of each IAB node.
In this scheme, the path information from the target IAB host node to each IAB node may be information such as a connection mode and a connection structure between the target IAB host node and each IAB node. Specifically, the connection paths between the target IAB host node and each IAB node may be one or more, and different paths may include IAB nodes with the same or different configuration parameters and coverage areas, and at the same time, the upper-level IAB node and the lower-level IAB node of the same IAB node may be the same or different. The target IAB-hosting node topology structure includes path information from the target IAB-hosting node to each IAB node, and location information and signal coverage information of each IAB node.
In this scheme, the target IAB host node topology structure includes path information from the target IAB host node to each IAB node, and location information and signal coverage information of each IAB node, which can improve reliability of target IAB node selection, and further improve efficiency of obtaining configuration parameters of the target IAB node.
S205, receiving the target IAB host node topological structure;
s206, determining a target IAB node of the UE in the target IAB host node topological structure according to the target IAB host node topological structure;
s207, sending a request for acquiring the configuration parameters of the target IAB node to the target IAB host node;
s208, the received configuration parameters of the target IAB node are sent to the UE, and the UE is switched to the target IAB node in the target IAB host node topological structure according to the configuration parameters.
According to the technical scheme provided by the embodiment, before an acquisition request of a target IAB host node topology structure is sent to the target IAB host node, whether update information of the target IAB host node topology structure exists in an update event list or not is identified by reading the target IAB host node topology structure stored in advance in the current IAB host node, and then the target IAB host node topology structure is acquired, wherein the target IAB host node topology structure comprises path information from the target IAB host node to each IAB node, position information of each IAB node and signal coverage information. By reading the pre-stored target IAB host node topological structure and identifying whether the update event list has the update information of the target IAB host node topological structure or not, the target IAB host node topological structure is further obtained, the reliability of target IAB node selection can be improved, and the efficiency of IAB node switching and configuration parameter obtaining is further improved.
Example III
Fig. 3 is a schematic structural diagram of an IAB hosting node switching device in a self-backhaul IAB network according to a third embodiment of the present application. As shown in fig. 3, the method specifically includes the following steps:
an information obtaining module 301, configured to obtain location information and/or motion data information of a UE connected to a current IAB host node topology;
a handover judgment module 302, configured to determine, according to the location information and/or the motion data information of the UE, whether the UE meets a handover condition of an IAB host node;
a target IAB host node determining module 303, configured to determine a target IAB host node according to the location information and/or the motion data information of the UE;
a structure acquisition request module 304, configured to send an acquisition request of a target IAB host node topology to the target IAB host node;
a structure receiving module 305, configured to receive the target IAB host node topology;
a target IAB node determining module 306, configured to determine a target IAB node of the UE in a target IAB host node topology according to the target IAB host node topology;
a configuration parameter obtaining request module 307, configured to send a request for obtaining a configuration parameter of the target IAB node to the target IAB host node;
And the configuration parameter sending module 308 is configured to send the received configuration parameter of the target IAB node to the UE, so that the UE switches to the target IAB node in the target IAB host node topology structure according to the configuration parameter.
Further, the target IAB node determining module is specifically configured to:
determining candidate IAB nodes of the UE in the target IAB host node topological structure according to the target IAB host node topological structure;
if the number of the candidate IAB nodes is one, determining the candidate IAB node as a target IAB node;
and if the number of the candidate IAB nodes is at least two, determining one candidate IAB node as the target IAB node according to the path attribute and/or the configuration attribute of the at least two candidate IAB nodes in the target IAB host node topological structure.
Further, the switching judgment module is specifically configured to:
acquiring a signal coverage area of at least one adjacent IAB host node around the current IAB host node;
acquiring a signal coverage range of a current IAB host node and a signal coverage range of at least one adjacent IAB host node around the current IAB host node, and determining a coverage boundary of the current IAB host node;
And determining whether the UE meets the switching condition of the IAB host node according to the coverage boundary of the current IAB host node and the position information and/or the motion data information of the UE.
Further, the structure acquisition request module is further configured to:
reading a target IAB host node topological structure prestored in a current IAB host node;
identifying whether the update information of the target IAB host node topological structure exists in an update event list;
if so, executing the operation of sending an acquisition request of the target IAB host node topological structure to the target IAB host node;
if not, reading the pre-stored target IAB host node topological structure.
Further, the target IAB host node topology includes:
path information from the target IAB host node to each IAB node, and location information and signal coverage information of each IAB node.
Further, the path attribute includes the number information of intermediate IAB nodes from each candidate IAB node to the target IAB host node;
the configuration attribute includes a BWP configuration of each candidate IAB node.
According to the technical scheme provided by the embodiment, the information acquisition module is used for acquiring the position information and/or the motion data information of the UE connected to the current IAB host node topological structure; the switching judging module is used for determining whether the UE meets the switching condition of the IAB host node according to the position information and/or the motion data information of the UE; the target IAB host node determining module is used for determining a target IAB host node according to the position information and/or the motion data information of the UE; the structure acquisition request module is used for sending an acquisition request of the target IAB host node topological structure to the target IAB host node; the structure receiving module is used for receiving the target IAB host node topological structure; a target IAB node determining module, configured to determine a target IAB node of the UE in a target IAB host node topology according to the target IAB host node topology; a configuration parameter acquisition request module, configured to send an acquisition request of the configuration parameter of the target IAB node to the target IAB host node; and the configuration parameter sending module is used for sending the received configuration parameters of the target IAB node to the UE, so that the UE can be switched to the target IAB node in the target IAB host node topological structure according to the configuration parameters. By the aid of the IAB host node switching device in the self-feedback IAB network, the problems that IAB nodes are low in switching speed and poor in capability of switching IAB host nodes in the prior art can be solved, whether the UE meets switching conditions of the IAB host nodes or not and a target IAB host node is determined by acquiring position information and/or motion data information of the UE connected to the current IAB host node topology structure, configuration parameters of the target IAB node are acquired and sent to the UE, and the UE can switch to the target IAB host node, so that switching efficiency of the IAB node and capability of switching different IAB host nodes can be improved.
The IAB hosting node switching device in the self-backhaul IAB network in the embodiment of the present application may be a device, or may be a component, an integrated circuit, or a chip in a terminal. The device may be a mobile electronic device or a non-mobile electronic device. By way of example, the mobile electronic device may be a cell phone, tablet computer, notebook computer, palm computer, vehicle-mounted electronic device, wearable device, ultra-mobile personal computer (ultra-mobile personal computer, UMPC), netbook or personal digital assistant (personal digital assistant, PDA), etc., and the non-mobile electronic device may be a server, network attached storage (Network Attached Storage, NAS), personal computer (personal computer, PC), television (TV), teller machine or self-service machine, etc., and the embodiments of the present application are not limited in particular.
The IAB hosting node switching device in the self-backhaul IAB network in the embodiments of the present application may be a device with an operating system. The operating system may be an Android operating system, an ios operating system, or other possible operating systems, which are not specifically limited in the embodiments of the present application.
The IAB hosting node switching device in the self-backhaul IAB network provided in the embodiment of the present application can implement each process implemented by the embodiments of the methods of fig. 1 to fig. 2, and in order to avoid repetition, a description is omitted here.
Example IV
As shown in fig. 4, the embodiment of the present application further provides an electronic device 400, including a processor 401, a memory 402, and a program or an instruction stored in the memory 402 and capable of running on the processor 401, where the program or the instruction implements each process of the embodiment of the method for switching an IAB host node in the self-backhaul IAB network when executed by the processor 401, and the process can achieve the same technical effects, so that repetition is avoided and redundant description is omitted herein.
The electronic device in the embodiment of the application includes the mobile electronic device and the non-mobile electronic device described above.
Example five
The embodiment of the present application further provides a readable storage medium, where a program or an instruction is stored on the readable storage medium, and when the program or the instruction is executed by a processor, the processes of the embodiment of the method for switching an IAB host node in the self-backhaul IAB network are implemented, and the same technical effects can be achieved, so that repetition is avoided, and no further description is provided herein.
Wherein the processor is a processor in the electronic device described in the above embodiment. The readable storage medium includes a computer readable storage medium such as a Read-Only Memory (ROM), a random access Memory (Random Access Memory, RAM), a magnetic disk or an optical disk, and the like.
Example six
The embodiment of the application further provides a chip, where the chip includes a processor and a communication interface, where the communication interface is coupled to the processor, where the processor is configured to run a program or an instruction, implement each process of the embodiment of the method for switching an IAB host node in the self-backhaul IAB network, and achieve the same technical effect, so that repetition is avoided, and no further description is given here.
It should be understood that the chips referred to in the embodiments of the present application may also be referred to as system-on-chip chips, chip systems, or system-on-chip chips, etc.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. Furthermore, it should be noted that the scope of the methods and apparatus in the embodiments of the present application is not limited to performing the functions in the order shown or discussed, but may also include performing the functions in a substantially simultaneous manner or in an opposite order depending on the functions involved, e.g., the described methods may be performed in an order different from that described, and various steps may also be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.
From the above description of the embodiments, it will be clear to those skilled in the art that the above-described embodiment method may be implemented by means of software plus a necessary general hardware platform, but of course may also be implemented by means of hardware, but in many cases the former is a preferred embodiment. Based on such understanding, the technical solutions of the present application may be embodied essentially or in a part contributing to the prior art in the form of a computer software product stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk), comprising several instructions for causing a terminal (which may be a mobile phone, a computer, a server, or a network device, etc.) to perform the methods described in the embodiments of the present application.
The embodiments of the present application have been described above with reference to the accompanying drawings, but the present application is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many forms may be made by those of ordinary skill in the art without departing from the spirit of the present application and the scope of the claims, which are also within the protection of the present application.
The foregoing description is only of the preferred embodiments of the present application and the technical principles employed. The present application is not limited to the specific embodiments described herein, but is capable of numerous obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the present application. Therefore, while the present application has been described in connection with the above embodiments, the present application is not limited to the above embodiments, but may include many other equivalent embodiments without departing from the spirit of the present application, and the scope of the present application is determined by the scope of the claims.
Claims (10)
1. An IAB hosting node switching method in a self-backhauled IAB network, wherein the method is performed by a current IAB hosting node; the method comprises the following steps:
acquiring position information and/or motion data information of UE connected to a current IAB host node topological structure;
determining whether the UE meets the switching condition of an IAB host node according to the position information and/or the motion data information of the UE;
if yes, determining a target IAB host node according to the position information and/or the motion data information of the UE;
sending an acquisition request of a target IAB host node topological structure to the target IAB host node;
Receiving the target IAB hosting node topology;
determining a target IAB node of the UE in the target IAB host node topological structure according to the target IAB host node topological structure;
sending a request for acquiring configuration parameters of the target IAB node to the target IAB host node;
and sending the received configuration parameters of the target IAB node to the UE, so that the UE can be switched to the target IAB node in the target IAB host node topological structure according to the configuration parameters.
2. The method of claim 1, wherein determining a target IAB node of the UE in a target IAB host node topology from the target IAB host node topology comprises:
determining candidate IAB nodes of the UE in the target IAB host node topological structure according to the target IAB host node topological structure;
if the number of the candidate IAB nodes is one, determining the candidate IAB node as a target IAB node;
and if the number of the candidate IAB nodes is at least two, determining one candidate IAB node as the target IAB node according to the path attribute and/or the configuration attribute of the at least two candidate IAB nodes in the target IAB host node topological structure.
3. The method according to claim 1, wherein determining whether the UE satisfies a handover condition of an IAB host node according to the location information and/or the motion data information of the UE comprises:
acquiring a signal coverage area of at least one adjacent IAB host node around the current IAB host node;
acquiring a signal coverage range of a current IAB host node and a signal coverage range of at least one adjacent IAB host node around the current IAB host node, and determining a coverage boundary of the current IAB host node;
and determining whether the UE meets the switching condition of the IAB host node according to the coverage boundary of the current IAB host node and the position information and/or the motion data information of the UE.
4. The method of claim 1, wherein prior to issuing the acquisition request for the target IAB host node topology to the target IAB host node, the method further comprises:
reading a target IAB host node topological structure prestored in a current IAB host node;
identifying whether the update information of the target IAB host node topological structure exists in an update event list;
if so, executing the operation of sending an acquisition request of the target IAB host node topological structure to the target IAB host node;
If not, reading the pre-stored target IAB host node topological structure.
5. The method of claim 4, wherein the target IAB host node topology comprises:
path information from the target IAB host node to each IAB node, and location information and signal coverage information of each IAB node.
6. The method of claim 2 wherein the path attributes include information on the number of intermediate IAB nodes from each candidate IAB node to the target IAB host node;
the configuration attribute includes a BWP configuration of each candidate IAB node.
7. An IAB host node switching device in a self-backhauled IAB network, wherein the device is configured in an IAB host node; the device comprises:
the information acquisition module is used for acquiring the position information and/or the motion data information of the UE connected to the current IAB host node topological structure;
the switching judging module is used for determining whether the UE meets the switching condition of the IAB host node according to the position information and/or the motion data information of the UE;
the target IAB host node determining module is used for determining a target IAB host node according to the position information and/or the motion data information of the UE;
The structure acquisition request module is used for sending an acquisition request of the target IAB host node topological structure to the target IAB host node;
the structure receiving module is used for receiving the target IAB host node topological structure;
a target IAB node determining module, configured to determine a target IAB node of the UE in a target IAB host node topology according to the target IAB host node topology;
a configuration parameter acquisition request module, configured to send an acquisition request of the configuration parameter of the target IAB node to the target IAB host node;
and the configuration parameter sending module is used for sending the received configuration parameters of the target IAB node to the UE, so that the UE can be switched to the target IAB node in the target IAB host node topological structure according to the configuration parameters.
8. The apparatus of claim 7, wherein the target IAB node determination module is configured to:
determining candidate IAB nodes of the UE in the target IAB host node topological structure according to the target IAB host node topological structure;
if the number of the candidate IAB nodes is one, determining the candidate IAB node as a target IAB node;
and if the number of the candidate IAB nodes is at least two, determining one candidate IAB node as the target IAB node according to the path attribute and/or the configuration attribute of the at least two candidate IAB nodes in the target IAB host node topological structure.
9. An electronic device comprising a processor, a memory and a program or instruction stored on the memory and executable on the processor, which when executed by the processor, performs the steps of the IAB-hosting node handover method in a self-backhauled IAB network according to any one of claims 1-6.
10. A readable storage medium, wherein a program or instructions is stored on the readable storage medium, which when executed by a processor, implements the steps of the IAB-hosting node handover method in a self-backhauled IAB network according to any one of claims 1-6.
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| WO2021097678A1 (en) * | 2019-11-19 | 2021-05-27 | 华为技术有限公司 | Access and backhaul control method and apparatus |
| WO2021159341A1 (en) * | 2020-02-12 | 2021-08-19 | 华为技术有限公司 | Communication method and communication apparatus |
| WO2022041249A1 (en) * | 2020-08-31 | 2022-03-03 | 华为技术有限公司 | Node switching method and related device |
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