A call access control method for d2d communication system based on interference suppression

A technology for call access control and communication systems, which is applied in the field of heterogeneous converged networks, can solve problems such as complex resource allocation, and achieve the effects of improving network capacity, improving performance, and being easy to implement

Active Publication Date: 2017-11-24
HOHAI UNIV
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  • Application Information

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Problems solved by technology

For D2D communication systems, the existence of multiple interferences makes resource allocation more complicated, involving interference between CUE and DUE and between DUE pairs

Method used

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  • A call access control method for d2d communication system based on interference suppression
  • A call access control method for d2d communication system based on interference suppression
  • A call access control method for d2d communication system based on interference suppression

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Embodiment Construction

[0043] Below in conjunction with accompanying drawing and specific embodiment, further illustrate the present invention, should be understood that these embodiments are only for illustrating the present invention and are not intended to limit the scope of the present invention, after having read the present invention, those skilled in the art will understand various aspects of the present invention Modifications in equivalent forms all fall within the scope defined by the appended claims of this application.

[0044] The selection of the scene directly affects the performance of the call access control method. The setting of the scene and the setting of parameters will be analyzed in detail below.

[0045] 1. Classification and quantity of mobile terminals

[0046] In the D2D communication system, terminals are divided into two categories: traditional cellular network mobile terminals CUE and D2D mobile terminals DUE. DUEs exist in pairs, and a pair of DUEs includes a D2D tra...

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Abstract

The invention discloses a call access control method of a D2D communication system based on interference suppression. The terminals of the D2D communication system include a cellular network terminal (CUE) and a D2D mobile terminal (DUE). The method includes: (1) initializing system parameters, Including the signal-to-noise ratio threshold, the power of the D2D transmitting terminal, and the signal strength of the CUE received by the base station; (2) Obtain the number of DUE pairs in the network and the distance between the terminals; (3) Update the parameter value of the interference in the network, and calculate Radius of the protected area; (4) Judging whether the DTUE to be connected to the network is located in the CUE restricted area, and if so, go to step 7; (5) Judging whether all DUE pairs meet the communication service quality requirements after the new DUE pair accesses the network, if not If it is satisfied, go to step 7; (6) The new DUE pair is connected to the network, and the number of DUEs is updated; (7) The method ends. The invention can effectively eliminate extra interference, reduce new call blocking rate and increase network capacity, has superior performance and is easy to implement.

Description

technical field [0001] The present invention relates to the field of heterogeneous fusion networks, in particular to a call access control method of a D2D communication system based on interference suppression. Background technique [0002] With the sharp increase in the demand for high-speed wireless data services, the demand for voice and data services is also increasing. The next generation of wireless networks requires new technologies to increase network capacity and improve frequency utilization. End-to-end communication (D2D) can effectively improve resource utilization for cellular networks. In D2D communication, the D2D mobile terminal (DUE) can share link resources with the cellular network mobile terminal (CUE), which effectively improves the system capacity. However, the resulting interference problem is also particularly significant, and there will be mutual interference between the CUE and the DUE. Currently, several methods exist to mitigate the additional i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W48/16H04W48/02
Inventor 李旭杰张洪浪张文娜孙颖顾燕李建霓郭洁
Owner HOHAI UNIV
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