CN116056149B - Simplex operation method, device, equipment and medium for IAB host node - Google Patents

Simplex operation method, device, equipment and medium for IAB host node Download PDF

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CN116056149B
CN116056149B CN202310304374.1A CN202310304374A CN116056149B CN 116056149 B CN116056149 B CN 116056149B CN 202310304374 A CN202310304374 A CN 202310304374A CN 116056149 B CN116056149 B CN 116056149B
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host node
iab host
target
iab
data
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CN116056149A (en
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邓勇志
李海方
范善翔
杨子炫
陈瑞欣
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Guangdong Shiju Network Technology Co ltd
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Guangzhou Shiju Network Technology Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H04W28/06—Optimizing the usage of the radio link, e.g. header compression, information sizing, discarding information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H04W28/08—Load balancing or load distribution
    • H04W28/0867—Load balancing or load distribution among entities in the downlink
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H04W28/08—Load balancing or load distribution
    • H04W28/09—Management thereof
    • H04W28/0925—Management thereof using policies
    • H04W28/0942—Management thereof using policies based on measured or predicted load of entities- or links
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H04W28/10—Flow control between communication endpoints
    • H04W28/12—Flow control between communication endpoints using signalling between network elements

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  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)

Abstract

The application discloses a simplex operation method, device, equipment and medium of an IAB host node, and belongs to the technical field of communication. The method comprises the following steps: acquiring a topology structure connected to a current IAB host node; identifying whether a dual-connection IAB node connected to a target IAB host node exists in the current IAB host node topology; if the data request exists, after receiving the data request sent by the UE, receiving the data request of the UE, uploading the data request to a core network, and sending a downlink simplex operation instruction to a target IAB host node; the downlink simplex operation instruction is used for indicating the target IAB host node to receive target data issued by the core network and sending the target data to the UE through the dual-connection IAB node. The scheme can optimize the efficiency of data transmission. When the double-connection IAB node exists, the multi-path transmission of the data is realized through the double-connection IAB node, and the reliability and the efficiency of the data transmission are improved.

Description

Simplex operation method, device, equipment and medium for IAB host node
Technical Field
The application belongs to the technical field of communication, and particularly relates to a simplex operation method, device, equipment and medium of an IAB host node.
Background
The simplex operation of the IAB (IntegratedAccess and Backhaul) integrated access and backhaul host node can improve the fault tolerance and reliability of the network and ensure the connectivity of the network and the stability of data transmission. When some nodes in the network have faults or congestion, simplex operation can automatically adjust the network topology structure and shunt loads to available paths, so that interruption of the network and loss of data are avoided.
Currently, the simplex operation technology of the IAB system mainly adopts some novel radio frequency chip technologies, such as a high-performance power amplifier, a low-noise amplifier, a radio frequency switch and the like, and a novel system architecture design, for example, a plurality of independent radio frequency channels are added in an IAB host node, so that the host node can realize the simplex operation function. In addition, there are also some implementation methods based on software defined radio technology, which implement simplex operation of the IAB host node by implementing simplex operation functions on a software level.
However, the prior art cannot determine a method for performing downlink simplex operation according to the topology structure of the IAB host node, and there may be a problem that transmission is congested when the IAB host node performs downlink simplex operation. Therefore, how to determine the downlink simplex operation mode according to the topology structure of the IAB host node, and to improve the link transmission efficiency are the problems to be solved in the art.
Disclosure of Invention
The embodiment of the application provides a simplex operation method, device, equipment and medium of an IAB host node, aiming at solving the problem that in the prior art, the method for carrying out downlink simplex operation cannot be determined according to the topology structure of the IAB host node, and the IAB host node possibly has transmission congestion when carrying out downlink simplex operation. The topology structure of the current IAB host node is obtained through the simplex operation method of the IAB host node, whether the double-connection IAB node connected with the target IAB host node exists or not is identified, and the efficiency of data transmission can be optimized. When the dual-connection IAB node exists, multi-path transmission of data can be realized through the dual-connection IAB node, and the reliability and the efficiency of data transmission are improved. Meanwhile, the use of the downlink simplex operation instruction can also reduce the delay and the packet loss rate of data transmission and improve the speed and the quality of the data transmission. Therefore, the requirements of users can be better met, and the performance and user experience of the network are improved.
In a first aspect, an embodiment of the present application provides a simplex operation method of an IAB host node, where the method includes:
acquiring a topology structure connected to a current IAB host node;
identifying whether a dual-connection IAB node connected with a target IAB host node exists in the current IAB host node topological structure;
If the data request exists, after receiving the data request sent by the UE, receiving the data request of the UE, uploading the data request to a core network, and sending a downlink simplex operation instruction to the target IAB host node; the downlink simplex operation instruction is used for indicating the target IAB host node to receive target data issued by the core network and sending the target data to the UE through the dual-connection IAB node.
Further, after receiving the data request sent by the UE, the method further includes:
identifying load data of a current IAB host node;
and if the load data reaches the preset load of the current IAB host node, executing the operation of sending a downlink simplex operation instruction to the target IAB host node.
Further, after receiving the data request sent by the UE, the method further includes:
identifying bandwidth configuration and routing configuration of the dual-connectivity IAB node in a current IAB hosting node topology and bandwidth configuration and routing configuration in a target IAB hosting node topology;
determining simplex tasks of the current IAB host node and the target IAB host node according to the identification result;
And determining that the current IAB host node or the IAB host node is responsible for issuing target data according to the simplex task.
Further, before identifying the bandwidth configuration and the routing configuration of the dual-connectivity IAB node in the current IAB hosting node topology, the method further comprises:
identifying a target data type of the data request;
if the target data type is a preset division type, executing: and identifying the bandwidth configuration and the routing configuration of the dual-connection IAB node in the current IAB host node topological structure.
Further, if the target data type of the data request is not the preset division type, whether the QoS data of the data request is the preset QoS grade is identified;
if the QoS class is preset, executing: and identifying the bandwidth configuration and the routing configuration of the dual-connection IAB node in the current IAB host node topological structure.
Further, after sending the downlink simplex job instruction to the target IAB host node, the method further includes:
receiving target data issuing completion information fed back by the target IAB host node;
determining the target data matching heat of the target IAB host node according to the issuing time of each data packet of the target data contained in the issuing completion information;
After receiving a data request sent by UE again, receiving the data request of the UE, and determining whether the matching heat between target data and the target IAB host node reaches a set threshold;
if yes, a downlink simplex operation instruction is sent to the target IAB host node;
if not, the current IAB host node issues the target data.
In a second aspect, an embodiment of the present application provides a simplex operation device of an IAB host node, where the device includes:
the acquisition module is used for acquiring the topological structure connected with the current IAB host node;
the identifying module is used for identifying whether a double-connection IAB node connected with a target IAB host node exists in the current IAB host node topological structure;
the receiving module is used for receiving the data request of the UE after receiving the data request sent by the UE if the data request exists, uploading the data request to a core network and sending a downlink simplex operation instruction to the target IAB host node; the downlink simplex operation instruction is used for indicating the target IAB host node to receive target data issued by the core network and sending the target data to the UE through the dual-connection IAB node.
Further, the device further comprises an execution module, wherein the execution module is used for:
identifying load data of a current IAB host node;
and if the load data reaches the preset load of the current IAB host node, executing the operation of sending a downlink simplex operation instruction to the target IAB host node.
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 topology structure connected with the current IAB host node is acquired; identifying whether a dual-connection IAB node connected with a target IAB host node exists in the current IAB host node topological structure; if the data request exists, after receiving the data request sent by the UE, receiving the data request of the UE, uploading the data request to a core network, and sending a downlink simplex operation instruction to the target IAB host node; the downlink simplex operation instruction is used for indicating the target IAB host node to receive target data issued by the core network and sending the target data to the UE through the dual-connection IAB node. By the simplex operation method of the IAB host node, the topology structure of the current IAB host node is obtained, whether the double-connection IAB node connected with the target IAB host node exists or not is identified, and the efficiency of data transmission can be optimized. When the dual-connection IAB node exists, multi-path transmission of data can be realized through the dual-connection IAB node, and the reliability and the efficiency of data transmission are improved. Meanwhile, the use of the downlink simplex operation instruction can also reduce the delay and the packet loss rate of data transmission and improve the speed and the quality of the data transmission. Therefore, the requirements of users can be better met, and the performance and user experience of the network are improved.
Drawings
FIG. 1 is a flow chart of a simplex operation method of an IAB host node according to an embodiment of the present disclosure;
fig. 2 is a flow chart of a simplex operation method of an IAB host node according to a second embodiment of the present application;
fig. 3 is a schematic structural diagram of a simplex operation device of an IAB host node according to a third embodiment of the present application;
fig. 4 is a schematic structural diagram of an electronic device according to a fourth 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 simplex operation method, device, equipment and medium of the IAB host node provided in the embodiments of the present application are described in detail below with reference to the accompanying drawings by means of specific embodiments and application scenarios thereof.
Example 1
Fig. 1 is a flow chart of a simplex operation method of an IAB host node according to an embodiment of the present application. As shown in fig. 1, the method specifically comprises the following steps:
s101, obtaining the topology structure of the current IAB host node.
First, the usage scenario of the present solution may be a scenario in which the current IAB host node searches whether there is a dual-connection IAB node connected to the target IAB host node, and if so, issues a downlink simplex job instruction to the target IAB host node.
Based on the above usage scenario, it can be appreciated that the execution subject of the present application may be the current IAB host node, which is not limited in this way.
The current IAB-hosting node may be an IAB-hosting node to which the device is currently connected, may be a plurality of different types of devices, and may include, for example:
1. 4G/5G base station: the 4G/5G base station generally has higher processing capacity and network capacity, can play the role of an IAB host node, simultaneously provides access and backhaul functions, and realizes integrated network service.
2. Router/switch: routers and switches typically have good network management and control capabilities, can act as IAB hosting nodes to handle network traffic, and provide access and backhaul functionality.
3. Multimedia gateway: multimedia gateways typically have audio and video processing capabilities, can act as IAB host nodes to handle multimedia traffic and provide access and backhaul functions.
4. Gateway of internet of things: the internet of things gateway generally has better internet of things protocol support and data management capability, can be used as an IAB host node to process internet of things traffic, and provides access and return functions.
Topology may refer to the physical layout of various devices such as computers interconnected by a transmission medium, and refers to the geometry formed during the interconnection process, which may represent the network configuration and interconnections of network servers and workstations. The IAB hosting node topology may be a tree network topology, where individual IAB nodes are hierarchically connected, where the higher the position, the more reliable the node is. I.e., the IAB home node is at the highest position and the IAB intermediate node is at the lower layer position of the IAB home node. In the tree structure, no loop is generated between two nodes in all nodes, and all paths can carry out bidirectional transmission. The topology structure can embody an IAB intermediate node under the IAB host node and the connection relation between the IAB host node and the IAB intermediate node.
The topology of the current IAB host node may be obtained by:
1. an IP address or domain name of the IAB host node is determined.
2. And performing route tracking on the IAB host node by using a network tool such as Traceroute and the like to acquire the route path information of the host node.
3. For each router, the SNMP protocol (Simple Network Management Protocol ) is used to obtain other device information of its topology and connections. SNMP can obtain information of network devices through MIB (Management Information Base ).
4. And establishing a network topological graph by using the topological structure and the equipment information, and marking the IAB host node and other connected equipment, thereby obtaining the topological structure of the IAB host node and the IAB intermediate node.
S102, identifying whether a double-connection IAB node connected with a target IAB host node exists in the current IAB host node topological structure.
A dual connectivity IAB node may refer to an IAB node that establishes connectivity with two or more IAB host nodes in an IAB network topology. The dual-connection IAB node has stronger network fault tolerance capability and flexibility, and can continue to provide service through a path provided by one IAB host node when the other IAB host node fails.
The target IAB-hosting node may refer to a particular IAB-hosting node in an IAB network to operate or communicate with. For example, in routing, the target IAB host node is the destination IAB host node to which the packet is to be sent.
To identify whether there are dual-connection IAB nodes in the current IAB hosting node topology that are connected to the target IAB hosting node, topology analysis and route lookup may be performed. The method comprises the following specific steps:
1. and analyzing the IAB network topology structure to find all IAB nodes connected between the current IAB host node and the target IAB host node.
2. According to the IAB network topology structure and the routing table, all possible paths from the current IAB host node to the target IAB host node are calculated, and the paths passing through the double-connection IAB nodes are screened out.
3. And (3) carrying out path quality evaluation and optimization on the screened paths, finding out the optimal paths and establishing connection.
S103, if the data request exists, after receiving the data request sent by the UE, receiving the data request of the UE, uploading the data request to a core network, and sending a downlink simplex operation instruction to the target IAB host node; the downlink simplex operation instruction is used for indicating the target IAB host node to receive target data issued by the core network and sending the target data to the UE through the dual-connection IAB node.
The UE (User Equipment) may be a radio device, which refers to a terminal device in a mobile communication system, such as a mobile phone, a tablet computer, etc. In mobile communication networks such as LTE (Long Term Evolution ) and 5G, a UE is one of the key devices for communication with a base station.
A data request of a UE generally refers to a request from the UE to the core network, requiring that some type of data, such as audio, video, images or other files, be acquired from the network.
When the current IAB host node receives a data request from a UE, it needs to forward the request to the core network to obtain the required data. The method can be carried out by the following steps:
1. the current IAB host node receives the data request of the UE.
2. The current IAB host node converts the request into a corresponding protocol format, such as HTTP or HTTPs.
3. The current IAB host node sends the converted data request to a data center or other server in the core network that is responsible for handling the data request.
4. The data center or server processes the request and returns the required data.
5. The current IAB host node converts the returned data into a format readable by the UE and sends it back to the UE.
The downstream simplex operation instruction may be an instruction for controlling downstream in the IAB network, and is typically sent by the host node to the downstream node. The function is to instruct the lower node to receive and process the data stream transmitted from the upper node and transmit the data to the target UE.
The downlink simplex operation instruction may include the following:
1. target data type: indicating the type of target data such as video and audio.
2. Target IAB host node information: indicating the location and identifier of the target IAB host node.
3. Target data transmission parameters: the method comprises the steps of transmitting parameters such as a transmission rate and a transmission period and the like, and is used for indicating the transmission mode of target data.
4. Dual connectivity IAB node information: and indicating the location and identifier of the dual connectivity IAB node for indicating through which dual connectivity IAB nodes the target data is transmitted to the UE.
After the current IAB host node receives the data request of the UE and uploads the data request to the core network, the target IAB host node where the target UE is located can be determined according to the position where the target UE is located and the IAB network topology structure, and a downlink simplex operation instruction is sent to the node. The instruction should include information such as ID of the target UE, relevant parameters of the data stream, and the time of delivery. After receiving the instruction, the target IAB host node may start sending data to the target UE.
The core network may be a core part of a mobile communication network, including various core devices, protocols, and technologies, for connecting mobile devices and network services, and providing management, control, and authentication functions for mobile communications. In a 5G mobile communication network, a core network mainly includes various network elements such as AMF, SMF, UPF, AUSF and UDM.
The core network issues target data, typically a specific data type requested by the UE, such as audio, video, text, etc., to the target host IAB node. In addition, the target data may also be data for network management and optimization, such as network traffic and device location. The specific target data type and content depends on the UE's data request and the functional configuration of the core network.
The target IAB host node can receive target data issued by the core network according to the information in the downlink simplex operation instruction, and send the target data to the UE through the dual-connection IAB node. Specifically, the target IAB host node may split the target data according to the target data transmission parameter, and send the split data to the UE through the dual-connection IAB node. In the sending process, the target IAB host node can dynamically adjust the split ratio according to the information such as the real-time load and the configuration parameters so as to optimize the data transmission performance.
The technical scheme provided by the embodiment obtains the topology structure of the node connected with the current IAB host; identifying whether a dual-connection IAB node connected with a target IAB host node exists in the current IAB host node topological structure; if the data request exists, after receiving the data request sent by the UE, receiving the data request of the UE, uploading the data request to a core network, and sending a downlink simplex operation instruction to the target IAB host node; the downlink simplex operation instruction is used for indicating the target IAB host node to receive target data issued by the core network and sending the target data to the UE through the dual-connection IAB node. By the simplex operation method of the IAB host node, the topology structure of the current IAB host node is obtained, whether the double-connection IAB node connected with the target IAB host node exists or not is identified, and the efficiency of data transmission can be optimized. When the dual-connection IAB node exists, multi-path transmission of data can be realized through the dual-connection IAB node, and the reliability and the efficiency of data transmission are improved. Meanwhile, the use of the downlink simplex operation instruction can also reduce the delay and the packet loss rate of data transmission and improve the speed and the quality of the data transmission. Therefore, the requirements of users can be better met, and the performance and user experience of the network are improved.
On the basis of the above technical solutions, optionally, after receiving the data request sent by the UE, the method further includes:
identifying load data of a current IAB host node;
and if the load data reaches the preset load of the current IAB host node, executing the operation of sending a downlink simplex operation instruction to the target IAB host node.
In this scheme, the load data of the current IAB hosting node may refer to the amount of network traffic and load handled by the current node.
The load data of the current node may be obtained by monitoring the network interface of the current IAB hosting node to identify its load data, e.g. monitoring parameters such as traffic, packet number and delay of its network interface. In addition, load data of the node may also be acquired in real time by installing specific monitoring software or hardware on the node.
The preset load of the current IAB host node may refer to a maximum load value that the current IAB host node can handle in a preset period of time. If the load data reaches the preset load of the current IAB host node, the current node has reached the maximum load capacity, and cannot bear more tasks.
In this case, in order to ensure the stability and performance of the network, the data may be directly forwarded to the target node by sending a downlink simplex operation instruction to the target IAB host node, so as to reduce the load pressure of the current node. The specific manner of operation depends on the topology and the actual situation of the current network. In practical application, a corresponding load scheduling policy can be formulated according to a comparison result of load data and a preset load, and implemented in a network.
In the scheme, the overload condition of the IAB host node can be avoided by identifying the load data of the current IAB host node and executing the operation of sending the downlink simplex operation instruction to the target IAB host node when the preset load is reached, so that the stability and the reliability of the network are ensured. Meanwhile, by effectively utilizing the dual-connection IAB node, the network load can be managed more flexibly, and the performance and efficiency of the network are improved.
Based on the above technical solutions, optionally, after sending a downlink simplex operation instruction to the target IAB host node, the method further includes:
receiving target data issuing completion information fed back by the target IAB host node;
determining the target data matching heat of the target IAB host node according to the issuing time of each data packet of the target data contained in the issuing completion information;
after receiving a data request sent by UE again, receiving the data request of the UE, and determining whether the matching heat between target data and the target IAB host node reaches a set threshold;
if yes, a downlink simplex operation instruction is sent to the target IAB host node;
If not, the current IAB host node issues the target data.
In this scheme, when a UE requests data from the core network, the core network transmits the data to the target IAB host node, and then the target IAB host node issues the data to the UE.
After the target IAB host node issues data to the UE, it may send target data issue completion information to the core network, informing the core network that the data has been successfully issued. The information may include statistics about the data transmission (e.g., transmission rate and transmission delay, etc.), as well as status information of the UE (e.g., whether the UE successfully received the data, signal quality of the UE, etc.).
How the current IAB host node receives the target data delivery completion information fed back by the target IAB host node may depend on the specific implementation. One possible way is that the target IAB host node may periodically query the core network for new target data delivery completion information. Another possibility is that the core network may actively send the target data delivery completion information to the target IAB host node. Either way, the IAB host node must be able to receive and parse this information in order to optimize or troubleshoot the network as needed.
The delivery time of each data packet of the target data included in the delivery completion information may refer to the time that the data packets pass during transmission, including the time of transmission between the core network, the target IAB host node, and the UE.
In an IAB network, the target IAB-hosting node is the key node responsible for delivering data to the UE. The target data matching heat may refer to the matching degree of the target data in the target IAB host node cache, that is, how likely the target IAB host node has cached the data to meet the UE's request. If the target data is highly hot, the target IAB host node has a greater likelihood of buffering the data, thereby increasing the data transmission speed and improving the data transmission reliability.
The target data matching heat may be measured according to a plurality of metrics, such as a request frequency of data, the number of request sources, and the degree of data sharing between UEs, etc. The target IAB host node can utilize the indexes to dynamically adjust the caching strategy, and improve the data matching heat degree so as to improve the data transmission efficiency and reliability.
The target IAB host node may record the time of delivery of each packet of the target data, and determine, according to this information, whether the data has a higher matching heat. For example, a time-to-issue threshold may be set for different types of data, and if the time-to-issue threshold is exceeded, the time-to-issue is longer, and the target data is lower after the matching heat is calculated; if the target data is lower than the issuing time threshold, the issuing time is shorter, and the target data is higher after the matching heat is calculated.
The matching heat setting threshold may refer to a threshold for determining whether the matching heat between the target data and the target IAB host node reaches a certain level. Generally, if the matching heat of the target data is higher than the set threshold, the target IAB host node will preferentially buffer the data to improve the data transmission efficiency and reliability.
After receiving again the data request sent by the UE, the target IAB host node may determine whether the matching heat between the target data and the target IAB host node reaches the set threshold by:
1. determining whether the target data has been cached: if the target data is cached, the matching heat of the target data is higher, and the data can be directly sent to the UE.
2. Judging the request frequency and the request source of the target data: the target IAB host node may record information such as a request time, a request source, and a request number of times of the target data, and determine whether the data has a higher matching heat according to the information. If a certain data is frequently requested and the number of requests is high, the matching heat of the data may be high, and the data may be considered to be cached.
3. Judging the sharing degree of the target data: caching the target data may improve data transmission efficiency and reliability if the sharing of the data between multiple UEs is high.
4. Comparing the matching heat of the target data with a set threshold value: if the matching heat of the target data is above a set threshold, the data may be cached preferentially.
If the matching heat reaches the set threshold, the current IAB host node can send a request to the target IAB host node in a downlink simplex operation instruction mode so as to request the target IAB host node to send target data to the terminal user. The specific flow is as follows:
1. the current IAB host node sends a downlink simplex operation instruction to the target IAB host node to request the target IAB host node to send target data to the terminal user.
2. And after receiving the downlink simplex operation instruction, the target IAB host node judges whether the target data is cached or not. If so, the data can be directly sent to the terminal user; if not, it is necessary to request the data from its upstream IAB host node to be forwarded to the target IAB host node.
If the matching heat does not reach the set threshold, the current IAB host node may broadcast or multicast the target data to surrounding IAB host nodes so that more nodes have the data. The specific flow is as follows:
1. The current IAB host node delivers the target data to surrounding IAB host nodes, which may be broadcast or multicast, so that more nodes have the data.
2. After receiving the target data, the other IAB host nodes can buffer the data and send the data to the end user when the end user sends out a request.
3. When the terminal user sends out the request, the current IAB host node can select an optimal IAB host node to transmit data according to the factors of the area, the distance and the like where the current IAB host node is located. If the selected node has the requested data, the data can be directly delivered to the end user; if not, a request is made to the upstream IAB hosting node to forward the data to the selected node.
According to the scheme, the target data can be issued to the IAB host node with higher matching degree according to the dynamic adjustment of the matching heat, so that the data transmission efficiency is improved, and the data is prevented from being issued repeatedly. The data can be issued to the optimal IAB host node, so that the problems of data transmission delay, packet loss and the like are avoided, and the user experience is improved.
Example two
Fig. 2 is a flow chart of a simplex operation method of an IAB host node according to a second embodiment of the present application. As shown in fig. 2, the method specifically comprises the following steps:
S201, obtaining the topology structure of the current IAB host node.
S202, identifying whether a double-connection IAB node connected with a target IAB host node exists in the current IAB host node topological structure.
S203, if the data request exists, after receiving the data request sent by the UE, receiving the data request of the UE, uploading the data request to a core network, and sending a downlink simplex operation instruction to the target IAB host node; the downlink simplex operation instruction is used for indicating the target IAB host node to receive target data issued by the core network and sending the target data to the UE through the dual-connection IAB node.
On the basis of the above embodiment, optionally, before identifying the bandwidth configuration and the route configuration of the dual-connection IAB node in the current IAB host node topology, the method further includes:
identifying a target data type of the data request;
if the target data type is a preset division type, executing: and identifying the bandwidth configuration and the routing configuration of the dual-connection IAB node in the current IAB host node topological structure.
In this solution, the target data type of the UE sending the data request may be any data that needs to be transmitted, such as a web page, audio, video, and pictures, etc. In network communications, common data request protocols include HTTP, FTP, SMTP, and the like, which specify the format and content of the data request.
Identifying the target data type of a data request requires viewing information about the data request, such as the request header, the request body, etc., which may typically be viewed by a protocol analysis tool, a packet grasping tool, etc. The target data type of the data request may be identified based on the format and content specified by the protocol.
The preset division type may be preset by the network planner when designing the network, whether it is a simplex or duplex task depends on the planner's design intent. In general, a simplex task refers to a data stream in a network being transmitted in only one direction, while a duplex task refers to a data stream in a network being transmitted in both directions simultaneously. Thus, the preset division type, simplex or duplex, is determined by the planner according to specific network requirements and design requirements. In this scheme, the preset division type may be a simplex task.
The related information of the data request may include a target data type and a preset division type, so that after identifying the target data type of the data request, whether the target data type is the preset division type can be identified, and if yes, execution is performed: and identifying the bandwidth configuration and the routing configuration of the dual-connection IAB node in the current IAB host node topological structure.
In the scheme, in the IAB network, due to the complexity of the connection relation and the topological structure between the nodes, different transmission modes and control strategies are needed for different types of target data, so that the types of the target data are identified, the corresponding transmission modes and control strategies are determined, and the performance and stability of the network are improved.
On the basis of the above technical solutions, optionally, after identifying the target data type of the data request, the method further includes:
if the target data type of the data request is not the preset division type, whether QoS data of the data request is the preset QoS grade is identified;
if the QoS class is preset, executing: and identifying the bandwidth configuration and the routing configuration of the dual-connection IAB node in the current IAB host node topological structure.
In this scenario, qoS (Quality of Service ) data may be mechanisms and policies in the network for providing different quality of service classes. In the course of data communication, networks need to provide different quality of service in order to meet the requirements of different applications. The QoS technology is to ensure the quality of service of data transmission of various applications in a network by setting indexes such as priority, bandwidth limitation, delay, packet loss rate and the like.
QoS classes are generally classified into the following:
1. no service quality guarantee: under the service quality level, the network does not make any guarantee, and all data packets are transmitted in a 'first-come-first-serve' mode.
2. Guaranteed bandwidth: under the service quality level, the network provides certain bandwidth guarantee for the data flow, and ensures that the data flow can arrive at a destination on time.
3. Low delay: at this quality of service level, the network ensures that the transmission delay of the data stream is minimized.
4. Reliability: under the service quality level, the network ensures the reliability of the data packet, namely, ensures that the data packet transmission is not lost.
5. Minimum bandwidth: at this quality of service level, the network provides minimum bandwidth guarantees for the data stream, ensuring that the data stream can arrive at the destination on time, but not the transmission speed.
6. Maximum delay: at this quality of service level, the network ensures that the maximum delay of the data flow does not exceed a certain value.
7. Maximum jitter: under the service quality level, the network ensures that the jitter of data stream transmission does not exceed a certain value.
To identify whether the QoS data of the data request is a preset QoS level, it is necessary to determine which QoS levels are supported by the current system, and once the QoS levels supported by the system are determined, the QoS data of the data request may be identified and compared to see whether they meet the preset QoS level requirements. If so, then execution may be performed: and identifying the bandwidth configuration and the routing configuration of the dual-connection IAB node in the current IAB host node topological structure.
In the scheme, more refined resource scheduling can be realized by configuring and routing according to QoS grade and bandwidth in a topological structure, and network performance and service quality are improved. By identifying the QoS level of the data request and the bandwidth configuration and the route configuration in the topological structure, the quality assurance of data transmission can be realized, and the reliability and the stability of the network are improved.
S204, identifying the bandwidth configuration and the route configuration of the dual-connection IAB node in the current IAB host node topological structure and the bandwidth configuration and the route configuration in the target IAB host node topological structure.
The bandwidth configuration of a dual-connection IAB node in the current IAB hosting node topology may refer to the bandwidth resources available to the node, typically configured by a network administrator. In an IAB network, a dual-connection IAB node is typically configured to connect two IAB host nodes at the same time, so its bandwidth resources need to be reasonably configured to meet the communication requirements between the two IAB host nodes.
The routing configuration of the dual-connectivity IAB node in the current IAB-hosting node topology may refer to routing information that the node uses to forward data packets, including to which node, how to reach the node, and the hierarchical relationship between the dual-connectivity IAB node and the IAB-hosting node. In an IAB network, a dual-connection IAB node may be configured to forward a packet from one IAB host node to another IAB host node, so its routing configuration needs to take into account the distance and topology between the two IAB host nodes to ensure that the packet can reach the destination quickly and reliably.
To identify the bandwidth configuration and the route configuration of the dual-connection IAB node in the current IAB hosting node topology structure, the topology structure diagram of the current IAB hosting node can be checked, all the dual-connection IAB nodes connected to the current node are marked, and then the bandwidth configuration and the route configuration of each dual-connection IAB node in the current node topology structure are determined according to the connection bandwidth and the route table information of each dual-connection IAB node.
S205, determining simplex tasks of the current IAB host node and the target IAB host node according to the identification result.
The simplex task of the IAB host node and the target IAB host node refers to a task that the current node can only transmit data in one direction and cannot simultaneously transmit uplink and downlink data. In an IAB network, a node may be an uplink simplex task or a downlink simplex task.
The bandwidth configuration and the routing configuration can determine whether the simplex task of the current IAB host node and the IAB host node is an uplink simplex task or a downlink simplex task, and the following two factors need to be considered:
1. the size of the upstream bandwidth and the downstream bandwidth. If the uplink bandwidth from the current IAB host node to the target IAB host node is larger than the downlink bandwidth, the simplex task of the current IAB host node should be the downlink task; if the downstream bandwidth is greater than the upstream bandwidth, then the simplex task of the current IAB host node should be the upstream task.
2. And (5) route configuration. In an IAB host node topology, there may be multiple IAB host nodes, each with its own routing configuration. It is possible to determine what the path from the current IAB host node to the target IAB host node is by means of the routing configuration. If the simplex tasks of all nodes in the path are downlink tasks, the simplex task of the current IAB host node should also be the downlink task; if the simplex task of all nodes in the path is an upstream task, then the simplex task of the current IAB host node should also be an upstream task.
S206, determining that the current IAB host node or the IAB host node is responsible for issuing target data according to the simplex task.
From the determination of the simplex task, it may be determined which node is responsible for the delivery of the target data. If the simplex task of the current node is an uplink task, the issuing of the target data is responsible for a double-connection IAB node connected with the current IAB host node; if the simplex task of the current node is a downlink task, the target data is issued by the dual-connection IAB node connected with the target IAB host node.
In this embodiment, bandwidth and routing resources of each node in the IAB network can be fully utilized to realize efficient data transmission by determining the IAB host node for delivering the target data according to the simplex task. Meanwhile, according to simplex tasks of the nodes, the responsible party for data transmission can be determined more accurately, repeated data transmission and conflict are avoided, and reliability and stability of data transmission are improved. The performance and efficiency of the whole IAB network are improved, and the communication requirements of more users are met.
Example III
Fig. 3 is a schematic structural diagram of a simplex operation device of an IAB host node according to a third embodiment of the present application. As shown in fig. 3, the method specifically includes the following steps:
an obtaining module 301, configured to obtain a topology structure connected to a current IAB host node;
an identifying module 302, configured to identify whether there is a dual-connection IAB node connected to a target IAB host node in the current IAB host node topology structure;
a receiving module 303, configured to, if so, receive a data request of a UE after receiving the data request sent by the UE, upload the data request to a core network, and send a downlink simplex operation instruction to the target IAB host node; the downlink simplex operation instruction is used for indicating the target IAB host node to receive target data issued by the core network and sending the target data to the UE through the dual-connection IAB node.
Further, the device further comprises an execution module, wherein the execution module is used for:
identifying load data of a current IAB host node;
and if the load data reaches the preset load of the current IAB host node, executing the operation of sending a downlink simplex operation instruction to the target IAB host node.
The technical scheme provided by the embodiment is that an acquisition module is used for acquiring a topology structure connected with a current IAB host node; the identifying module is used for identifying whether a double-connection IAB node connected with a target IAB host node exists in the current IAB host node topological structure; the receiving module is used for receiving the data request of the UE after receiving the data request sent by the UE if the data request exists, uploading the data request to a core network and sending a downlink simplex operation instruction to the target IAB host node; the downlink simplex operation instruction is used for indicating the target IAB host node to receive target data issued by the core network and sending the target data to the UE through the dual-connection IAB node. By means of the simplex operation device of the IAB host node, the topology structure of the current IAB host node is obtained, whether the double-connection IAB node connected with the target IAB host node exists or not is identified, and data transmission efficiency can be optimized. When the dual-connection IAB node exists, multi-path transmission of data can be realized through the dual-connection IAB node, and the reliability and the efficiency of data transmission are improved. Meanwhile, the use of the downlink simplex operation instruction can also reduce the delay and the packet loss rate of data transmission and improve the speed and the quality of the data transmission. Therefore, the requirements of users can be better met, and the performance and user experience of the network are improved.
The simplex operation device of the IAB host node 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 simplex operation device of the IAB host node in the embodiment of the present application may be a device having 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 simplex operation device of the IAB host node provided in the embodiment of the present application can implement each process implemented by the method embodiments 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 simplex operation method embodiment of the IAB host node when executed by the processor 401, and the same technical effects can be achieved, and for avoiding repetition, a 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 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 simplex operation method embodiment of the IAB host node are implemented, and the same technical effects can be achieved, so that repetition is avoided, and no further description is given here.
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, the chip includes a processor and a communication interface, the communication interface is coupled with the processor, the processor is used for running a program or an instruction, implementing each process of the simplex operation method embodiment of the IAB host node, and achieving the same technical effect, so as to avoid repetition, and no further description is provided 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 (5)

1. A method of simplex operation of an IAB host node, the method performed by a current IAB host node; the method comprises the following steps:
acquiring a topology structure connected to a current IAB host node;
identifying whether a dual-connection IAB node connected with a target IAB host node exists in the current IAB host node topological structure;
if so, after receiving a data request sent by the UE, identifying load data of the current IAB host node; if the load data reaches the preset load of the current IAB host node, executing the operation of sending a downlink simplex operation instruction to the target IAB host node, and uploading the data request to a core network; the downlink simplex operation instruction is used for indicating the target IAB host node to receive target data issued by the core network and sending the target data to the UE through the dual-connection IAB node;
Identifying a target data type of the data request;
if the target data type is a preset division type, identifying bandwidth configuration and route configuration of the double-connection IAB node in the current IAB host node topological structure and bandwidth configuration and route configuration in the target IAB host node topological structure;
if the target data type of the data request is not the preset division type, whether QoS data of the data request is the preset QoS grade is identified; if the QoS class is preset, identifying the bandwidth configuration and the route configuration of the double-connection IAB node in the current IAB host node topological structure and the bandwidth configuration and the route configuration in the target IAB host node topological structure;
determining simplex tasks of the current IAB host node and the target IAB host node according to the identification result;
and determining that the current IAB host node or the target IAB host node is responsible for issuing target data according to the simplex task.
2. The method of claim 1, wherein after issuing a downstream simplex job instruction to the target IAB host node, the method further comprises:
receiving target data issuing completion information fed back by the target IAB host node;
Determining the target data matching heat of the target IAB host node according to the issuing time of each data packet of the target data contained in the issuing completion information;
after receiving the data request sent by the UE again, determining whether the matching heat between the target data and the target IAB host node reaches a set threshold;
if yes, a downlink simplex operation instruction is sent to the target IAB host node;
if not, the current IAB host node issues the target data.
3. A simplex operation device of an IAB host node, wherein the device is configured at a current IAB host node; the device comprises:
the acquisition module is used for acquiring the topological structure connected with the current IAB host node;
the identifying module is used for identifying whether a double-connection IAB node connected with a target IAB host node exists in the current IAB host node topological structure;
the receiving module is used for uploading the data request to the core network after receiving the data request sent by the UE if the data request exists, and sending a downlink simplex operation instruction to the target IAB host node; the downlink simplex operation instruction is used for indicating the target IAB host node to receive target data issued by the core network and sending the target data to the UE through the dual-connection IAB node;
The apparatus further comprises an execution module for:
identifying load data of a current IAB host node;
if the load data reaches the preset load of the current IAB host node, executing the operation of sending a downlink simplex operation instruction to the target IAB host node;
the device is also for:
identifying a target data type of the data request;
if the target data type is a preset division type, identifying bandwidth configuration and route configuration of the double-connection IAB node in the current IAB host node topological structure and bandwidth configuration and route configuration in the target IAB host node topological structure;
if the target data type of the data request is not the preset division type, whether QoS data of the data request is the preset QoS grade is identified; if the QoS class is preset, identifying the bandwidth configuration and the route configuration of the double-connection IAB node in the current IAB host node topological structure and the bandwidth configuration and the route configuration in the target IAB host node topological structure;
determining simplex tasks of the current IAB host node and the target IAB host node according to the identification result;
and determining that the current IAB host node or the target IAB host node is responsible for issuing target data according to the simplex task.
4. 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 method of simplex operation of an IAB host node according to any of claims 1-2.
5. A computer readable storage medium, wherein a program or instructions is stored on the readable storage medium, which when executed by a processor, performs the steps of the simplex job method of an IAB host node according to any of claims 1-2.
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