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A method and device for determining an access frequency band based on d2d communication

A technology for determining communication frequency and frequency band, which is applied in the field of communication and can solve problems such as communication interference between D2D users and cellular users.

Active Publication Date: 2019-02-15
CHINA UNITED NETWORK COMM GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Embodiments of the present invention provide a method and device for determining an access frequency band based on D2D communication, which can solve the problem of communication interference between D2D users and cellular users

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  • A method and device for determining an access frequency band based on d2d communication

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Embodiment Construction

[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0028] The embodiment of the present invention can be used in a communication network, and a basic terminal, a D2D terminal and a base station can be set in the communication network. Wherein, the D2D terminal includes a D2D transmitter and a D2D receiver, and communication between the D2D transmitter and the D2D receiver may be collectively referred to as D2D communication. Such as figure 1 In the communication network shown, multiple cellular users, base st...

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Abstract

The embodiment of the present invention discloses a method and device for determining an access frequency band based on D2D communication, which relates to the field of communication technology and can solve the problem of communication interference between D2D users and cellular users, while maximizing the communication rate of D2D users. The method in the embodiment of the present invention includes: determining the low-interference user set according to the obtained first to fourth distances; obtaining the uplink of the target cellular terminal multiplexed by the D2D transmitter and the D2D receiver during the D2D communication process according to the obtained fading parameters The ergodic rate in the frequency band; determine the uplink frequency band of the target cellular terminal corresponding to the maximum value in the ergodic rate as the access frequency band; determine the D2D transmitter by comparing the transmit power, maximum transmit power, and minimum transmit power of the D2D transmitter optimal transmit power. The invention is applicable to a communication network.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a method and device for determining an access frequency band based on D2D communication. Background technique [0002] With the development of communication technologies, especially the popularization of cellular networks, in order to effectively improve the spectrum utilization rate of cells, D2D (Device To Device, Direct Device Access) users are gradually introduced in cells. During the communication process, D2D users can directly transmit user data without going through the network, that is, user data can be directly transmitted between terminal A and terminal B that belong to the D2D user. Moreover, when communicating between D2D users, the uplink frequency band of the cellular users is used for data transmission. [0003] At present, in order to reduce communication interference between D2D users and cellular users during communication, resource allocation i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W72/04
CPCH04W72/0453H04W72/541Y02D30/70
Inventor 张雨驰聂昌胡云裴郁杉孙云翔
Owner CHINA UNITED NETWORK COMM GRP CO LTD
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