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Random access congestion control method and electronic equipment

A technology for congestion control and random access, applied in the field of random access congestion control methods and electronic equipment, can solve the problems of not considering the delay requirement of MTC equipment, unable to obtain access opportunities, network congestion, etc., to alleviate network congestion, Improve the success rate of access and ensure the effect of delay requirements

Active Publication Date: 2020-01-14
北京中科晶上科技股份有限公司
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Problems solved by technology

[0004] The above-mentioned existing methods for solving the network congestion problem either do not consider the delay requirements of different MTC devices, or only guarantee the delay requirements of high-priority MTC devices, resulting in low-priority MTC devices (for example, delay-tolerant MTC devices) Unable to obtain access opportunities for a long time

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  • Random access congestion control method and electronic equipment
  • Random access congestion control method and electronic equipment
  • Random access congestion control method and electronic equipment

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Embodiment Construction

[0043] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below through specific embodiments in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0044] The MTC device (hereinafter referred to as the device) establishes a connection with the base station during the communication process. First, it needs to perform a random access process, including: the device selects a preamble from the available preamble set with a medium probability as msg1 and sends it to the base station. Multiple devices The same preamble may be selected in the same time-frequency resource; the base station sends a random access response message msg2 (including T back_off); the device completes uplink synchronization according to the received msg2, and sen...

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Abstract

The invention provides a random access congestion control method and an electronic device. The random access congestion control method comprises the following steps: step 1) a base station estimates the load of each priority device in a next access time slot; 2) the base station sets an access forbidding priority and an access forbidding probability of the next access time slot according to the estimated load of each priority device of the next access time slot; and 3) the base station broadcasts the access forbidding priority and the access forbidding probability of the next access time slot,and the access forbidding priority is used for the equipment to determine whether to perform access or forbid access according to the access forbidding probability, so that the access success rate ofthe MTC equipment in a 5G system machine type communication scene can be improved.

Description

technical field [0001] The present invention relates to the technical field of wireless communication, in particular, to a random access congestion control method and electronic equipment. Background technique [0002] In the 5G system machine-type communication (MTC, Machine-Type Communication) scenario, a large number of machine-type communication devices (that is, MTC devices, hereinafter referred to as devices or terminals) communicate with each other through mobile networks. If a large number of MTC devices access concurrently in a short period of time, it will cause serious network congestion, resulting in access delays or even access failures. [0003] Currently, the ACB (Access Class Barring) mechanism is widely used to solve network congestion problems. Under this mechanism, the base station dynamically adjusts the ACB factor according to the load of the MTC device and broadcasts a message containing the factor. A random number is generated after receiving the mess...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W28/02H04W74/08
CPCH04W28/0289H04W74/0833H04W4/70
Inventor 张发
Owner 北京中科晶上科技股份有限公司
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