Network Selection Joint Bandwidth Allocation Method in Heterogeneous Networks

Abstract

The invention discloses a network selection combined bandwidth allocation method in heterogeneous network, and mainly aims at solving problems in coordinated resource allocation among networks of multiple users, and enables a user terminal to obtain higher service rate with lowest network access power. The method comprises the steps that 1) a wireless resource management center gathers environment information sensed by different users; 2) all possible network selection schemes are generated according to the obtained information; 3) the bandwidth is allocated for each scheme, and under the condition of limited resource, the service quality of users is ensured maximally; 4) a scheme which enables the highest total utility function value of the system is selected from all the schemes and serves as a final allocation result; and 5) the wireless resource management center sends the allocation result, and the users, as multi-mode terminals, access the network in a parallel manner and transmit data. The method has the advantages that the utilization rate of system resources is high, the service quality of users can be improved, and stable transmission of services is realized.

Description

technical field [0001] The invention relates to the field of wireless communication, in particular to a network selection joint bandwidth allocation method in a heterogeneous network, which is used to solve the problem of network selection of multiple users in the wireless heterogeneous network and the access bandwidth of the selected network. Background technique [0002] With the rapid development of mobile communication systems, wireless access networks are diversified, such as Universal Mobile Telecommunications System (UMTS), Long Term Evolution (LTE), Wireless Metropolitan Area Networks (WMANs), and Wireless Local Area Networks (WLANs). The coverage areas of these wireless access networks overlap each other to form a wireless heterogeneous network. On the other hand, in order to meet the ever-increasing business needs, users can use multiple wireless access technologies as multi-mode terminals to access different networks in parallel to make full use of these heterogen...

AI Technical Summary

Problems solved by technology

However, in this solution, each user can only choose to access one network, which reduces the diversity of network choices. From this perspective, network resources have not been fully utilized.

On the other hand, this scheme does not take measures to guarantee the service quality of users during the game process, which will lead to the phenomenon that the service rate of some users is too low in the game result

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