Resources allocation method for D2D communication combining upper and lower channels in cellular network

A cellular network and channel resource technology, applied in machine-to-machine/machine-type communication services, wireless communication, electrical components, etc., can solve problems such as unjoint reuse of uplink and downlink spectrum resources

Active Publication Date: 2020-08-25
CHONGQING UNIV
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Problems solved by technology

Although this method can improve the system capacity to a certain extent, because it does not jointly multiplex the uplink and downlink spectrum resources, and th

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  • Resources allocation method for D2D communication combining upper and lower channels in cellular network
  • Resources allocation method for D2D communication combining upper and lower channels in cellular network
  • Resources allocation method for D2D communication combining upper and lower channels in cellular network

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Embodiment Construction

[0132] Embodiments of the present invention are described below through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific implementation modes, and various modifications or changes can be made to the details in this specification based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that, in the case of no conflict, the following embodiments and features in the embodiments can be combined with each other.

[0133] It should be noted that the diagrams provided in the following embodiments are only schematically illustrating the basic ideas of the present invention, and only the components related to the present invention are shown in the diagrams rather than the number, shape and shape of the compo...

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Abstract

The invention provides a resources allocation method for D2D communication combining upper and lower channels in a cellular network. The method comprises the following steps: establishing a cellular network D2D communication model; acquiring the minimum constraint value of the transmitting power of the D2D user multiplexing uplink and downlink channels, the transmitting power of the base station and the transmitting power of the cellular user under a preset constraint condition; calculating all optimal transmitting powers according to the Lambert W function and the minimum constraint value; and based on a Kuhn-Munkres algorithm and all the optimal transmitting powers, finding out the optimal uplink channel resources allocated to the D2D users by the cellular users and the optimal downlinkchannel resources allocated to the D2D users by the cellular users. According to the invention, the D2D user further improves the spectrum utilization rate by adopting an uplink and downlink channel joint multiplexing mode; a two-stage resource allocation method is carried out by combining power control and channel allocation, so that the advantages of a D2D communication system are exerted to thegreatest extent; by adopting a power distribution scheme of combined adjustment of the cellular users and the D2D users, the energy efficiency of the D2D users can be maximized.

Description

technical field [0001] The present invention relates to the field of communication technologies, in particular to a method for resource allocation of D2D communication in which upper and lower channels are combined in a cellular network. Background technique [0002] As one of the key technologies of 5G, device-to-device (Device-to-Device, hereinafter referred to as D2D) communication is a short-distance communication technology that directly performs data communication without forwarding by a base station. D2D communication technology allows adjacent mobile terminals to use operator-licensed spectrum to directly perform point-to-point data transmission, so that local services can be upgraded in the network without building additional infrastructure. The introduction of D2D communication technology in the cellular network can bring many benefits, but the introduction of D2D communication in the cellular network, the multiplexing of cellular user channels will cause serious i...

Claims

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Application Information

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IPC IPC(8): H04W4/70H04W52/14H04W52/24H04W52/38H04W72/04
CPCH04W4/70H04W52/143H04W52/146H04W52/241H04W52/383H04W72/53
Inventor 吴玉成周力余海飞吴新淘陈世勇
Owner CHONGQING UNIV
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