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A Delay Tolerant Traffic Loading Method for Heterogeneous Wireless Mobile Networks

A mobile network and time-delay technology, applied in the direction of network traffic/resource management, wireless communication, electrical components, etc., can solve the problems of not adapting to user mobile scenarios and heterogeneous network scenarios, waste of spectrum resources, and low load sharing efficiency. Achieve the effect of improving traffic load sharing efficiency and improving prediction accuracy

Active Publication Date: 2018-11-09
BEIJING UNIV OF POSTS & TELECOMM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the interference problem is solved by inter-frequency networking between the small cell and the macro network, it will cause a great waste of spectrum resources, which is undoubtedly unfeasible for precious spectrum resources. Therefore, the current small cell and macro network The macro network is a network with the same frequency, so complex interference management algorithms need to be used between small cells to reduce interference
[0007] Low load sharing efficiency
[0008] The LIPA / SIPTO-based traffic offloading solution is to offload user data in real time without additional delay, and is suitable for network scenarios with fixed users or low mobility, but not suitable for mobile scenarios and heterogeneous network scenarios
Under the load sharing scheme of LIPA / SIPTO, if the user is not within the coverage of the small cell, the user will immediately choose to provide data traffic service from the macro network, and there will be no additional delay for the service; if the user is moving at a high speed, Users often do not stay under a certain home base station for too long, so most of the data still flows through the macro network, and the load sharing efficiency is low

Method used

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  • A Delay Tolerant Traffic Loading Method for Heterogeneous Wireless Mobile Networks
  • A Delay Tolerant Traffic Loading Method for Heterogeneous Wireless Mobile Networks
  • A Delay Tolerant Traffic Loading Method for Heterogeneous Wireless Mobile Networks

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Embodiment Construction

[0020] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in further detail below in conjunction with specific embodiments and with reference to the accompanying drawings.

[0021] Stochastic geometry theory is a modern random set theory developed on the basis of geometric probability and integral geometry in the 1970s (see Stoyan D, Kendall W S, MeckeJ.1995. Stochastic Geometry and its Applications , 2nd edition. New York: Wiley). The stochastic geometry theory was first applied in the field of image processing by Miller et al. to identify the shape of the target of interest. Characteristics Simulate the deployment properties of a base station, analyzing its coverage and the probability of its access points (see H.Q.NGUYEN, F.BACCELLI.2007.A Stochastic Geometry Analysis of Dense IEEE 802.11Networks).

[0022] The present invention proposes a time-delay tolerant traffic load sharing method f...

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Abstract

The invention discloses a traffic load sharing method for a delay-tolerant heterogeneous wireless mobile network, comprising the following steps: step 1, constructing an access point AP deployment diagram of a random geometry model in a specific area; step 2, determining the state transition probability of discrete time for a user in the specific area according to the AP deployment diagram constructed in step 1; step 3, determining a probability distribution function of the distance between the user and an AP communicating with the user; step 4, determining the coverage rate of the AP; and step 5, determining a data traffic function of shared load expected by the user in a certain period of time according to the results obtained in step 2, step 3 and step 4. By adopting the method of the invention, the prediction accuracy of load-shared traffic can be improved, and the traffic load sharing efficiency of WIFI can be improved.

Description

technical field [0001] The invention relates to a time-delay-based load-sharing method for flow-loading in the technical field of mobile communications, in particular to a time-delay-tolerant flow load-sharing method for heterogeneous wireless mobile networks. Background technique [0002] With the development of wireless communication technology, smart terminals have increased the growth of mobile data traffic. On the other hand, mobile Internet applications and video services have further aggravated the growth of mobile data traffic. The rapid growth of mobile data traffic has put enormous pressure on the core network, resulting in network congestion, connection interruption and other issues, affecting user experience. In order to solve this problem, 3GPP proposed Local IP Access (LIPA) and selection IP traffic offload (SIPTO) technical solutions to realize the offloading of macro network data traffic. LIPA is based on local mobile data load offloading, which can support ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W24/06H04W28/10
CPCH04W24/06H04W28/10
Inventor 胡智群温向明路兆铭张洪春雷涛徐恒王宜清
Owner BEIJING UNIV OF POSTS & TELECOMM
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