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Network selection and mobility management method for power Internet of Things multi-connection technology

A power Internet of Things and network selection technology, applied in the field of communication, can solve the problems of limited spectrum resources, difficult to meet the terminal communication rate and delay, unable to guarantee communication connection, etc., to ensure the quality of service, to ensure the effect of stable detection and operation

Inactive Publication Date: 2020-07-28
ZHEJIANG HUAYUN INFORMATION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this context, if the IoT terminal is still only connected to one 5.8G base station for data transmission, that is, the single connection mode, then due to the limited spectrum resources used by a single base station, it is difficult for the communication rate and delay of the terminal to meet the ubiquitous power requirements. IoT business needs
Especially when the channel condition of the location where the terminal is located is relatively poor, a reliable communication connection cannot be guaranteed

Method used

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  • Network selection and mobility management method for power Internet of Things multi-connection technology
  • Network selection and mobility management method for power Internet of Things multi-connection technology
  • Network selection and mobility management method for power Internet of Things multi-connection technology

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0104] Considering the network selection process in the multi-connection scenario of the ubiquitous power Internet of Things, the system contains K IoT terminals and M base stations, and the K terminals select appropriate cooperative base station clusters from the base stations for communication.

[0105] The specific implementation process is:

[0106] S1 is initialized. Including the number K of terminal users in the system and the number M of base stations, the RSRP received from the terminal to the base station is used as a strength matrix P, the size is M×K, and the cooperative base station matrix S=zeros(M,K), that is, the strategy for network selection, the matrix The value of each column in 1 indicates the cooperative base station cluster selected by the user, and the maximum number N of base stations that each terminal user can access k , select the RSRP threshold λ of the base station strategy.

[0107] S2 selects the largest item in each column in the parameter ma...

Embodiment 2

[0113] Considering the handover problem in the multi-connection scenario of the ubiquitous Internet of Things, when the Internet of Things terminal is switching, it is actually a process of re-selecting the network. The terminal relies on its main base station for auxiliary handover, and reselects a cluster of cooperative base stations for communication. It is worth noting Best of all, there is no link loss during the handover, so no data is lost. The specific implementation process is:

[0114] S1 The main base station performs measurement control on the terminal

[0115] S2 The main base station allows the terminal to perform uplink transmission

[0116] The S3 terminal measures the RSRP of its surrounding base stations and reports the information to the main base station

[0117] S4 The main base station determines the candidate set of coordinated base stations according to the RSRP information reported by the terminal

[0118] S5 sends the service user number informatio...

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Abstract

The embodiment of the invention provides a network selection and mobility management method for an electric power Internet of Things multi-connection technology, and the method comprises the steps: collecting all pieces of network information and reference information including business demand information, terminal equipment states, user preferences and access points in a common coverage range ofa plurality of base stations; in combination with the change of the network connection state and the basic service quality demand index of the user service, performing performance evaluation and sorting on the currently available networks, and selecting the network with the optimal evaluation as a switching target for the user; and when a preset condition is satisfied, triggering a switching stepin the multi-connection scene. In a multi-connection scene of the electric power Internet of Things, the connection between the Internet of Things terminal and the access network is not limited by a single base station any more, but a cluster of base stations cooperating with each other, and a larger service base station selection space is provided for the terminal by a mechanism of simultaneouslyconnecting with a plurality of base stations. Reasonable multi-connection network selection is carried out, so that the performance of the multi-connection system can be further improved.

Description

technical field [0001] The invention belongs to the field of communication, and in particular relates to a network selection and mobility management method oriented to the multi-connection technology of the electric power internet of things. Background technique [0002] Licensed frequency band spectrum is less likely to be applied for due to resource constraints; unlicensed frequency band can be used by any device as long as it meets the regulatory constraints. Therefore, the 5.8G license-free frequency band can be used for free data transmission in the Internet of Things. In the current power Internet of Things system, the deployment structure of 5.8G LTE-U base stations follows the traditional mobile communication networking method. The system can only allocate the resources of a single base station for each IoT terminal. If multiple base stations are allocated to IoT terminals at the same time resources, wireless resources will be seriously lacking. At the same time, i...

Claims

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Application Information

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IPC IPC(8): H04W36/00H04W84/18
CPCH04W36/0055H04W84/18H04W36/0058
Inventor 陈盛慧孙晨陈荣君
Owner ZHEJIANG HUAYUN INFORMATION TECH CO LTD
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