Access control method and device

Abstract

The embodiment of the invention provides an access control method and an access control device. The method comprises the following steps of: counting the number of users accessed successfully within the preset time period; determining the number of users accessed successfully each time slot on average according to the number of users accessed successfully in the preset time period and the total number of time slots within the preset time period; based on a slotted ALOHA model, determining the average value of the number of users tried to be accessed each time slot of a first candidate and a second candidate which correspond to the number of users accessed successfully each time slot on average; selecting one of the average values of the numbers of users tried to be accessed each time slot of the first candidate and the second candidate; and determining the accessed control parameters and / or modes according to the average value of the number of users tried to be accessed each time slot actually, and carrying out access control according to the determined access control parameters and / modes. The method and the device provided by the embodiment of the invention can determine the average value of the number of users tried to be accessed, and the access control modes or parameters are arranged accordingly, thus the access control is carried out effectively, and the jamming of an access network and a core network is reduced.

Description

technical field [0001] The embodiments of the present invention relate to the communication field, and more specifically, to a method and device for access control. Background technique [0002] Under normal circumstances, if the terminal needs to establish communication with the network, it needs to send a message to the network side through a random access channel to request access, and the network side will decide whether to allocate a channel and the allocated channel type according to the access request. This message sent on the random access channel is called "random access request". [0003] Because the network side cannot control the time when terminals request access, it is inevitable that two or more terminals will grab a random access channel time slot to apply for access in areas with heavy traffic. This is a collision phenomenon. When a collision occurs, since the random access requests of two or more terminals interfere with each other, the network side may no...

AI Technical Summary

Problems solved by technology

In addition, even if a large number of users successfully access through the random access channel, it may cause congestion on the radio access network (RAN, Radio Access Network) side due to other reasons; for example, it may be due to the limited capacity of the data transmission channel. Cause the RAN side to process the data of all successfully accessed users in the same way, resulting in congestion on the data transmission channel

[0005] In addition, after a large number of users access, it will inevitably bring a large amount of signaling and data transmission, which may exceed the processing capacity of the core network (CN, Core Network), resulting in CN congestion

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