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In-band full duplex D2D communication link interference elimination method used for cellular network

A communication link and interference elimination technology, which is applied in the field of interference elimination of in-band full-duplex D2D communication links, can solve problems such as large transmission power of base stations and in-band full-duplex D2D user interference, so as to ensure service quality and improve The effect of improving communication quality and network performance

Inactive Publication Date: 2016-05-04
CHINA UNIV OF MINING & TECH
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Problems solved by technology

[0008] In view of the shortcomings of the above technologies, the present invention provides an in-band full-duplex D2D communication link interference elimination method for cellular networks, which solves the problem that the large transmission power of the base station causes interference to in-band full-duplex D2D users

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  • In-band full duplex D2D communication link interference elimination method used for cellular network
  • In-band full duplex D2D communication link interference elimination method used for cellular network
  • In-band full duplex D2D communication link interference elimination method used for cellular network

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Embodiment Construction

[0030] The interference elimination method of the present invention includes a base station, a cellular user, and a pair of in-band full-duplex D2D communication link users, represented by BS, USER1, USER2, and USER3 respectively, to form a cellular network embedded in in-band full-duplex D2D communication , the in-band full-duplex D2D communication link multiplexes the downlink spectrum resources of the cellular network, and has the ability to send and receive signals at the same frequency at the same time; the cellular network transmitting base station BS and the cellular network user USER1 using a point-to-point topology structure, and the multiplexed cellular Users USER2 and USER3 of in-band full-duplex D2D communication of network downlink spectrum resources; in-band full-duplex D2D communication users have the ability to receive signals while sending signals, and detect the The signal, and allocate the optimal transmission power of the target signal and the received signa...

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Abstract

The invention belongs to a full duplex D2D communication link interference elimination method, and particularly relates to an in-band full duplex D2D communication link interference elimination method used for a cellular network. The method includes: a base station, a cellular user, a couple of in-band full duplex D2D communication link users form a cellular network, and an in-band full duplex D2D communication link multiplexes cellular network downlink spectrum resources, and has a capability of simultaneous same-frequency signal sending and receiving; the method includes the cellular network transmitting base station BS of a point-to-point topological structure, the cellular network user USER1, the USER2 and USER3 which multiplex the cellular network downlink spectrum resources and adopt in-band full duplex D2D communication; and the in-band full duplex D2D communication users have the capability of receiving a signal while sending a signal, forward a monitored signal while sending a target signal, and allocate optimal transmitting power of the target signal and received signal, thereby improving communication quality of the in-band full duplex D2D communication link. The method utilizes the characteristic of simultaneous receiving and sending of in-band full duplex, and the overall performance of a cellular communication system is not influenced while D2D communication quality is improved.

Description

technical field [0001] The present invention relates to a duplex D2D communication link interference elimination method, in particular to an in-band full-duplex D2D communication link interference elimination method for a cellular network. Background technique [0002] With the continuous increase of emerging data services such as video sharing, online games, proximity sensing, etc., the network performance of cellular networks has become an important problem to be solved in the field of wireless communication. Device-to-Device (D2D) communication is considered to be an effective communication technology to improve network performance in the next generation cellular network system. D2D communication is a new technology that allows terminals to communicate directly by reusing cell resources under the control of the system. It can increase the spectral efficiency of the cellular communication system, reduce the terminal transmission power, and solve the problem of wireless com...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W28/02H04W72/12
CPCH04W28/0215H04W28/0236H04W72/1273Y02D30/70
Inventor 李松林昌林孙彦景王艳芬张珂夏晨阳谭泽富
Owner CHINA UNIV OF MINING & TECH
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