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A fast resource sharing method suitable for inter-device communication

A technology for inter-device communication and resource sharing, applied in the field of rapid resource sharing, can solve complex problems, achieve the effect of wide application, ensure communication quality, and improve overall performance

Active Publication Date: 2019-02-19
STATE GRID JIANGSU ELECTRIC POWER CO ELECTRIC POWER RES INST +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method is relatively complicated, and only the optimal transmit power of the D2D user pair is referred to when calculating the maximum frequency band utilization

Method used

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  • A fast resource sharing method suitable for inter-device communication
  • A fast resource sharing method suitable for inter-device communication
  • A fast resource sharing method suitable for inter-device communication

Examples

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Embodiment Construction

[0032] The present invention will be further described below in conjunction with the accompanying drawings. The following examples are only used to illustrate the technical solution of the present invention more clearly, but not to limit the protection scope of the present invention.

[0033] Such as figure 1As shown, in the D2D communication, there is a base station (BS) serving all users, and the cellular user (Cellualr User, CU) establishes a direct communication link with the base station (BS), and each D2D user (D2DUser, DU) pairs It consists of a DU transmitter (DUTX) and a DU receiver (DURX). The DU transmitter transmits data with the DU receiver through the D2D link. The D2D link uses the uplink frequency band of the CU, that is, the DU and the CU share the same resources. Among them The CUs in question are those CUs that are scheduled for transmission during a particular transmission interval. In the D2D model, all CUs are served by the BS in orthogonal FDMA mode, i...

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Abstract

The invention discloses a quick resource sharing method applicable to device-to-device (D2D) communication, comprising the following steps: first, a base station acquires a channel coefficient from CUs (Cellular User) to the base station and a channel coefficient of interference of DU (D2D User) senders to the CUs through uplink channel estimation, and acquires a channel coefficient from the DU senders to DU receivers and a channel coefficient of interference of the CUs to the DU receivers through feedback of the DU receivers; and then, the base station reasonably allocates CU band resources among all pairs of DUs according to the acquired channel information and based on the rule that the communication rate of the CUs is not lower than Rn and the sum of band utilization rate of all the DUs is maximum, and optimizes the sending power of the DU senders of all pairs of DUs on the allocated bands and the sending power of the CUs. The optimal solution can be acquired through only a small amount of calculation and comparison in the specific implementation process, DU band allocation and CU and DU sending power control can be achieved quickly, and the overall performance of the system is improved to the maximum.

Description

technical field [0001] The invention relates to a fast resource sharing method suitable for inter-device communication, and belongs to the field of mobile communication resource sharing strategy and same-frequency interference suppression design. Background technique [0002] Device-to-Device (D2D), as one of the supplementary communication technologies to existing mobile communication networks, has attracted widespread attention. The basic principle of this technology is to allow two cellular users (Cellualr User, CU) who are close to each other and need to exchange local data to establish a direct communication link instead of being relayed by a base station (BS) to communicate with each other. The biggest advantage of this technology is that it can reduce transmission delay, save power consumption, reduce the network burden of base stations and core networks, improve local frequency band utilization, and so on. In D2D communication, each D2D user (D2D User, DU) pair is c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W52/24H04W52/38H04W72/04
CPCH04W52/243H04W52/383H04W72/0453
Inventor 朱道华郭雅娟黄伟王小波姜海涛周超袁宇波袁晓冬郭静陈锦铭李斌王黎明李岩
Owner STATE GRID JIANGSU ELECTRIC POWER CO ELECTRIC POWER RES INST
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